Denial-of-Service

Perspective version 5.0.0 is vulnerable to unauthenticated remote code execution via unsafe Python eval() calls within the PolarsVirtualServer backend triggered by crafted protobuf messages.

Multiple Denial of Service vulnerabilities in IBM Tivoli Netcool/OMNIbus, potentially involving vulnerable Immutable.js libraries, allow unauthenticated remote attackers to disrupt service availability.

Multiple vulnerabilities in the PJSIP pjmedia library can be exploited by a remote, unauthenticated attacker to trigger a denial of service condition, potentially disrupting telecommunications services.

A memory exhaustion vulnerability in socket.io-parser (CVE-2026-69185) allows remote attackers to trigger denial-of-service by sending specially crafted packets containing a large number of binary attachments.

A vulnerability in Red Hat Multicluster Engine for Kubernetes allows an unauthenticated remote attacker to trigger a denial of service condition by exploiting a software flaw.

A null pointer dereference vulnerability in FreeRDP prior to 3.29.0 allows remote attackers to trigger a crash in the client process via crafted smartcard cache requests.

An unauthenticated remote attacker can trigger a panic and crash the Pterodactyl Wings service by sending a maliciously crafted packet during the SFTP handshake.

A vulnerability in Netty's HTTP/2 decompressor allows an unauthenticated attacker to trigger an uncontrolled memory leak leading to a JVM OutOfMemoryError via crafted HTTP/2 DATA frames.

A vulnerability in gnome-remote-desktop allows an unauthenticated remote attacker to exhaust system resources by bypassing connection throttling when RDP is enabled in system mode on Red Hat Enterprise Linux.

A remote unauthenticated denial-of-service vulnerability in IBM WebSphere Application Server - Liberty allows attackers to cause excessive memory consumption via crafted requests.

Multiple vulnerabilities in Red Hat Enterprise Linux packages perl-Archive-Tar and httplib2 can be exploited by a remote, anonymous attacker to cause a Denial of Service condition.

A critical vulnerability (CVE-2026-44090) in Phoenix Contact CHARX SEC controllers allows unauthenticated remote attackers to gain full device control by bypassing authentication on the MQTT broker.

A file descriptor leak in the Performance Co-Pilot (PCP) linux_sockets module allows an attacker with initial code execution to escalate privileges to root.

The Elixir library 'Req' (versions >= 0.1.0, < 0.6.1) is susceptible to a denial-of-service vulnerability (CVE-2026-49755) caused by unbounded archive and compression extraction, which an attacker can leverage by providing a malicious HTTP response with a crafted 'content-type' or 'content-encoding' header, leading to memory exhaustion and application crashes.

CVE-2026-67215 describes a denial-of-service vulnerability in cJSON through version 1.7.19, where an attacker can trigger uncontrolled recursion and stack exhaustion by supplying a crafted RFC 6902 JSON Patch to cJSONUtils_ApplyPatches() or cJSONUtils_ApplyPatchesCaseSensitive(), leading to process crash.

A critical vulnerability, CVE-2026-66299, has been discovered in Apache Tomcat versions 9.0.x prior to 9.0.121, 10.1.x prior to 10.1.58, and 11.0.x prior to 11.0.25, allowing a remote attacker to cause a denial of service (DoS).

Multiple vulnerabilities have been discovered in Xen, allowing an attacker to achieve privilege escalation, remote denial of service, and compromise data confidentiality across all unpatched Xen versions, necessitating immediate patching.

A vulnerability in Apache Tomcat allows a remote, anonymous attacker to perform a Denial of Service attack, potentially disrupting service availability for applications hosted on the affected server.

An attacker can exploit multiple vulnerabilities in BlackBerry UEM Management Console to perform cross-site scripting attacks, cause a denial of service, and disclose information.

Multiple unspecified vulnerabilities in the Xen hypervisor allow an attacker to escalate privileges, disclose confidential information, or cause a denial-of-service condition affecting virtualized environments.

Multiple vulnerabilities exist in IBM WebSphere Application Server Liberty that an attacker can exploit to perform a Denial of Service attack.

A denial-of-service vulnerability exists in the `go/github.com/gotd/td` library versions prior to 0.145.1. A remote, unauthenticated attacker can exploit this by sending a crafted unencrypted MTProto packet during the handshake. This packet declares a large `dataLen` value, forcing the application to allocate an excessive amount of memory, potentially leading to out-of-memory (OOM) termination and denial of service due to unbounded memory allocation before length validation.

A denial of service vulnerability, CVE-2026-16192, affects IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.8 when the `restConnector-2.0` feature is enabled, allowing an unauthenticated attacker to cause service unavailability.

A null pointer dereference vulnerability, CVE-2026-67184, in TinyWeb through version 0.0.8 allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid version string, leading to a denial of service.

A critical memory leak vulnerability, CVE-2026-67183, in TinyWeb versions up to 0.0.8 allows unauthenticated attackers to exhaust server memory by sending ordinary HTTP requests, leading to worker process termination and denial of service.

A denial-of-service vulnerability (CVE-2026-54632) exists in the SIPSorcery NuGet package versions <= 10.0.8, allowing an unauthenticated attacker to remotely terminate an active RTP or WebRTC media session by sending a single malformed inbound UDP packet to the RTP/ICE socket, which exploits insufficient length checks and an exception handling flaw.

An unauthenticated attacker can exploit an unbounded RECONNECT_REQUEST forwarding vulnerability in QTINeon's NeonRelay component to amplify denial-of-service attacks against a connected host. By sending spoofed RECONNECT_REQUEST packets, the relay forwards each one to the host without proper deduplication or rate limiting, consuming host resources. Additionally, excessive spoofed IPs can reset legitimate rate limiting, further impacting service availability. This vulnerability affects Java, Python, and TypeScript implementations of NeonRelay.

A critical HTTP request smuggling vulnerability (CVE-2026-66752) exists in tiny-http versions up to and including 0.12.0, allowing remote attackers to desynchronize request framing by sending a Transfer-Encoding header with arbitrary values, causing the library to incorrectly apply chunk-decoding and ignore Content-Length, which enables request smuggling attacks and can lead to denial of service by tying up connections and consuming worker threads.

An unauthenticated attacker can exploit CVE-2026-61609, a global rate-limit vulnerability in Pterodactyl Panel versions up to and including 1.12.4, by sending approximately 10 requests per minute to authentication endpoints, leading to a panel-wide denial of service for all legitimate users and administrators attempting to log in or complete 2FA.

A nil pointer dereference vulnerability, tracked as CVE-2026-47427, in the GitHub MCP Server's `completion/complete` handler allows an unauthenticated attacker to cause a complete denial of service by sending a malformed JSON-RPC request with missing or empty parameters for the `ref` field, leading to an immediate server crash.

Multiple vulnerabilities have been discovered in Samba, a network file sharing service, which could allow a remote attacker to trigger a denial of service, compromise data confidentiality, and bypass security policies.

A local attacker can exploit a vulnerability in binutils to cause a Denial of Service condition and disclose sensitive data.

A local attacker can exploit multiple vulnerabilities found in GIMP plugins to perform a Denial of Service attack, execute arbitrary code, or disclose confidential information on affected systems.

A denial of service vulnerability exists in Netty, which an unauthenticated, remote attacker can exploit, allowing the attacker to disrupt the availability of affected systems or services.

A low-privileged remote attacker can exploit an incorrect behavior order vulnerability (CVE-2026-14169, CWE-696) in multiple ads-tec Industrial IT DVG-IRF series devices (versions prior to 2.3.0) by sending crafted input, leading to inconsistent account states and password overwrites, resulting in complete administrative unavailability of the device.

A critical out-of-bounds read vulnerability (CVE-2026-66759) has been identified in the GIMP file-icns plugin, where processing a crafted ICNS file with a truncated mask resource can lead to information disclosure of heap contents via leaked alpha channel pixel values or a denial of service due to an application crash.

A vulnerability in the GIMP file-fits plugin allows for an integer overflow when processing crafted FITS image files, occurring during memory allocation calculations for width and height, which leads to an undersized heap-based buffer, and subsequent writing of pixel data to this buffer causes a heap-based buffer overflow and memory corruption, resulting in arbitrary code execution or a denial of service.

An unauthenticated remote denial-of-service vulnerability exists in facil.io versions 0.7.5 through 0.7.6, allowing attackers to crash the server by sending a POST request with a 'Transfer-Encoding: chunked' header containing a negative chunk size value, which corrupts internal state and leads to a fault.

A denial-of-service vulnerability exists in facil.io versions 0.6.0 through 0.7.6, specifically in its multipart body parser, allowing an unauthenticated remote attacker to permanently freeze worker processes at 100% CPU by sending a malformed multipart/form-data request with a partial closing boundary, effectively disabling the server until manual restart.

An integer underflow vulnerability in facil.io through version 0.7.6 allows unauthenticated remote attackers to crash the server process via a crafted Content-Disposition header with an empty field name, leading to a Denial of Service.

Multiple vulnerabilities in ffmpeg allow a remote, anonymous attacker to cause memory corruption, execute arbitrary code, trigger a denial-of-service condition, or disclose confidential information. The attacker does not require authentication to exploit these flaws.

Multiple vulnerabilities in the libssh2 library allow a remote, unauthenticated attacker to potentially disclose sensitive information, cause a denial-of-service condition, or execute arbitrary code.

An unauthenticated Slowloris denial of service vulnerability exists in the default `serve()` path of AWS's `aws-smithy-http-server` framework (versions <= 0.66.4), allowing remote attackers to exhaust server resources by initiating numerous incomplete connections.

A denial-of-service vulnerability in etcd's TLS listener allows a network attacker to exhaust server memory by spawning unbounded goroutines through multiple TCP connections without sending ClientHello messages, leading to loss of availability for etcd clusters and dependent services like Kubernetes.

A denial-of-service vulnerability in py-libp2p versions up to 0.6.0 allows an authenticated attacker to send a specially crafted 12-byte DATA or SYN frame with an oversized length field, causing the victim's yamux read loop to block indefinitely and freezing all streams on the affected connection.

A vulnerability in `http4s-blaze-server` allows an attacker to cause a denial of service by exploiting unbounded WebSocket message aggregation, enabling an attacker to drive unbounded heap growth in the server's JVM by sending an unterminated fragmented WebSocket message, leading to an `OutOfMemoryError` and server termination, affecting any http4s application serving WebSocket routes over `BlazeServerBuilder` and triggerable by unauthenticated or authenticated clients.

An attacker can exploit CVE-2026-14257, a denial of service vulnerability in the `brace-expansion` Node.js library, by crafting an input with deeply chained brace groups that causes the expanded string length to grow without bound, leading to an uncatchable out-of-memory process crash in any application processing untrusted input via `expand()` directly or through dependencies like `minimatch` or `glob`.

An unauthenticated Denial-of-Service vulnerability in `@anephenix/hub` versions prior to 0.2.16 allows attackers to exhaust server CPU and memory resources by opening numerous WebSocket connections and ignoring server-initiated RPC messages, leading to unbounded timers and heap entries.

An unauthenticated remote denial-of-service vulnerability exists in the frp server's optional SSH Tunnel Gateway (frps) that allows an attacker to crash the entire frps process by sending a specially crafted five-byte message containing an integer overflow value in an SSH `exec` channel request, leading to a sustained service outage.

A remote, unauthenticated attacker can exploit a critical vulnerability in the DSMLv2 SOAP gateway (opendj-dsml-servlet) of OpenIdentityPlatform OpenDJ versions up to 5.1.1, allowing server-side request forgery (SSRF), local file reading via `file:` URIs, and denial-of-service (DoS) due to unbounded response reads by submitting specially crafted DSML add/modify requests.

A denial of service vulnerability (CVE-2026-44907) affects multiple versions of the react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack packages, allowing threat actors to trigger out-of-memory exceptions or excessive CPU usage by sending specially crafted HTTP requests to server function endpoints.

An unauthenticated remote attacker can cause a Denial of Service (DoS) in Netty servers utilizing XmlFrameDecoder by sending a specially crafted XML payload containing repeated '</' characters, leading to CPU exhaustion of the server's EventLoop thread and unresponsiveness.

A denial of service vulnerability exists in the js-yaml library (versions 5.0.0 through 5.2.1) due to an exponential parsing time bug in flow collections, allowing attackers to craft a small YAML document which, when processed by `load()` or `loadAll()` functions, consumes significant CPU resources and blocks the Node.js event loop.

A high-severity vulnerability in the `httplib2` Python client library allows a remote attacker to trigger a denial-of-service condition by sending a crafted HTTP response with a small, highly compressed payload that expands excessively upon decompression, causing memory exhaustion or OOM-kill in the client process.

A vulnerability (CVE-2026-55575) in the LiquidJS templating library's `pop` filter, affecting versions up to and including 10.27.0, allows an attacker to bypass the `memoryLimit` accounting, leading to uncontrolled memory allocation and potential denial of service when processing untrusted, large arrays in templates.

An unauthenticated attacker can exploit CVE-2026-55685 in React Router versions 7.0.0 through 7.17.x, when used in Framework Mode applications, to cause a denial-of-service condition by repeatedly accessing the manifest endpoint, leading to heavy server load and slow response times.

Multiple vulnerabilities in Netty can be exploited by an attacker to conduct Denial of Service (DoS) attacks, impacting the availability of services utilizing the Netty framework.

A remote, authenticated attacker can exploit multiple undisclosed vulnerabilities in RabbitMQ to conduct denial-of-service attacks and bypass existing security measures, impacting the availability and integrity of messaging systems.

A remotely triggerable Denial of Service (DoS) vulnerability exists in the 'find-my-way' router when used with Node.js HTTP/2 servers. Malicious HTTP/2 method values, such as 'constructor' or '__proto__', can be passed to the 'lookup()' function, which then indexes these values against internal data structures. This leads to a crash when the code attempts to access properties of these unexpected values, such as 'currentNode.prefix.length', causing the server to become unavailable. Users are advised to upgrade to version 9.7.0 or validate HTTP methods before processing.

An out-of-bounds heap read vulnerability (CVE-2026-65918) in PyTorch torchvision through version 0.28.0 allows attackers to supply malicious GIF files, leading to denial of service via segmentation fault or disclosure of adjacent heap memory contents.

An attacker can exploit a vulnerability in the pypdf library by crafting a PDF containing a malformed, not terminated inline image. When this malicious PDF is processed by pypdf, such as during text extraction, it triggers an infinite loop, leading to a denial of service. The issue is resolved in pypdf version 6.14.1.

PhpSpreadsheet's OLE reader contains a denial-of-service vulnerability where it fails to detect cycles in attacker-controlled XLS/OLE sector chains, leading to infinite loops and memory exhaustion when parsing specially crafted, small malformed XLS/OLE files, which can cause PHP workers to crash and deny service to web applications processing untrusted spreadsheet uploads.

The PhpOffice PhpSpreadsheet library is vulnerable to a denial of service (DoS) attack, identified as CVE-2026-59932, where its Gnumeric reader processes attacker-supplied `.gnumeric` files containing gzipped content without enforcing a decompressed-size limit, causing memory exhaustion and application crashes.

A vulnerability in the Auth.js `getToken()` helper function (next-auth and @auth/core) allows unauthenticated attackers to trigger an uncaught exception via a malformed `Authorization: Bearer` header, leading to a per-request denial of service in affected applications.

A high-severity denial of service vulnerability, CVE-2026-64611, exists in the `cfIEEE1284NormalizeMakeModel()` function of libcupsfilters, allowing a network-adjacent attacker to cause sustained CPU consumption and system unresponsiveness by broadcasting a specially crafted printer advertisement with an empty model field in the IEEE-1284 device ID.

An attacker can exploit multiple vulnerabilities in the n8n workflow automation platform to bypass security measures, perform a Denial of Service attack, disclose sensitive information, manipulate files, conduct SQL injection, and execute arbitrary code.

Multiple vulnerabilities in MongoDB allow an attacker to execute arbitrary code, bypass security measures, disclose confidential information, manipulate data, cause memory corruption, or trigger a denial-of-service condition.

Multiple vulnerabilities in Budibase allow an attacker to gain elevated privileges, perform SQL injection, bypass security measures, take over user accounts, manipulate or disclose data, and trigger a denial-of-service condition, enabling various malicious activities impacting data integrity, confidentiality, and system availability.

Multiple vulnerabilities in Internet Systems Consortium BIND allow an anonymous, remote attacker to bypass security measures, manipulate data, disclose confidential information, or trigger a Denial-of-Service condition, potentially leading to compromise of data integrity, confidentiality, and availability of the DNS service.

A vulnerability in CoreDNS, specifically within the `k8s_external` plugin, allows for a denial of service when performing a headless AXFR, as the `k8s_external` plugin can emit an empty transfer batch, which subsequently causes the `transfer` plugin to panic.

A denial of service vulnerability (CVE-2026-26080) in HAProxy Community Edition versions 3.2.x through 3.3.x before 3.3.3, HAProxy Enterprise, and ALOHA can lead to a loop or crash due to mishandled varint, impacting service availability.

CVE-2026-44621 describes a vulnerability in Libunbound applications where, when configured with the 'unwanted-reply-threshold' option, they can be abruptly terminated, leading to a denial of service.

A memory leak vulnerability, CVE-2024-7708, in Eclipse Jetty's server handling of HTTP 100-Continue requests can be exploited by an attacker to trigger an OutOfMemory error, leading to a Denial of Service state for affected servers.

A high-severity denial-of-service vulnerability (CVE-2026-64641) in Next.js applications utilizing the App Router with Server Actions allows an unauthenticated attacker to cause excessive CPU usage, leading to a complete service outage.

An authenticated n8n user with workflow creation and execution rights can achieve arbitrary code execution on the n8n host by staging a crafted local Git repository within the Git node, causing Git to run malicious hooks as the n8n process user.

A denial-of-service vulnerability exists in the `Bzip2Decoder` handler within Netty's `netty-codec-compression` and `netty-codec` libraries, allowing a remote attacker to exploit CVE-2026-59901 by providing a specially crafted bzip2 stream, which causes an infinite loop in the run-length encoding state machine, leading to the permanent hang of an event-loop thread and application denial of service.

A vulnerability in Netty's HTTP/3 `Http3FrameCodec`, tracked as CVE-2026-56816, allows an unauthenticated remote attacker to cause a denial of service by sending crafted reserved HTTP/3 frames with an excessively large, unvalidated payload length, leading to server memory exhaustion.

A vulnerability, CVE-2026-55851, in Netty's `HAProxyMessageDecoder` can lead to unbounded memory exhaustion when an attacker sends a specific PROXY protocol v2 binary prefix followed by a version byte of `0xFF`, causing a signed-byte sentinel collision that traps the decoder in a version-detection loop and ultimately exhausts the JVM's direct memory allocation, resulting in a denial of service.

A high-severity vulnerability, CVE-2026-55831, in Netty's SPDY SETTINGS decoder allows a remote unauthenticated attacker to trigger a denial of service by sending a crafted SPDY/3.1 SETTINGS frame that leads to excessive heap growth and CPU consumption due to unbounded map entries in `DefaultSpdySettingsFrame`.

FFmpeg versions 0.6.3 through 8.1.2 are vulnerable to a remote denial of service (DoS) via CVE-2026-64834, allowing an attacker to trigger an infinite loop in the `rtp_asf_fix_header` function by sending a crafted RTP/ASF stream, leading to CPU exhaustion and service unavailability.

A high-severity out-of-bounds memory access vulnerability, tracked as CVE-2026-64835, exists in FFmpeg versions 4.4 through 8.1.2 within the ADX audio decoder, allowing attackers to trigger both out-of-bounds reads and writes by supplying a crafted ADX or AAX audio file with a mid-stream channel layout change, potentially leading to denial of service, information disclosure, or arbitrary code execution.

This vulnerability affects BIND 9 resolver (`named`) and can lead to unexpected program termination (denial of service). The issue occurs when the resolver receives specific, delayed, or out-of-order responses to queries for CNAME or DNAME and A records. Specifically, if an authoritative server delays a DNAME or self-referential CNAME response while providing an A record, the `named` process may crash.

A DNSSEC validating resolver, specifically BIND 9 versions within the ranges 9.11.0-9.18.50, 9.20.0-9.20.24, 9.21.0-9.21.23, and their S1 variants, is vulnerable to a denial-of-service attack where an attacker can launch a random subdomain attack against a DNSSEC-signed zone by sending queries faster than the resolver can perform validation, leading to runaway memory usage and potentially exceeding configured limits by orders of magnitude.

A resource exhaustion vulnerability, CVE-2026-11605, affects specific versions of ISC BIND 9, where DNSSEC validation disproportionately consumes CPU resources when processing superfluous RRSIG records, potentially leading to a denial of service.

An attacker can exploit CVE-2026-11331, a flaw in ISC BIND 9's RPZ (Response Policy Zone) processing, by crafting long query names to trigger a mishandled NAMETOOLONG error, leading to either a bypass of RPZ rules or a denial of service due to an unexpected exit of the BIND 9 software.

CERT-FR has issued an advisory detailing multiple vulnerabilities in Elastic products, including CVE-2026-42397 and CVE-2026-49092, which could allow an attacker to cause remote denial of service, compromise data confidentiality and integrity, and perform Server-Side Request Forgery (SSRF).

Multiple vulnerabilities exist in Red Hat Ansible Automation Platform, stemming from issues in components such as node-tar, linkify-it, protobufjs, brace-expansion, fast-uri, and DOMPurify. A remote, unauthenticated attacker can exploit these flaws to bypass security measures, perform Cross-Site Scripting (XSS) attacks, manipulate data, trigger Denial-of-Service (DoS) conditions, or execute arbitrary code on the affected system.

A vulnerability in the avahi service allows a local attacker to perform a Denial of Service (DoS) attack, potentially leading to the unavailability of services or the system itself.

A remote, unauthenticated attacker can exploit a vulnerability in libarchive to initiate a Denial of Service attack, disrupting the availability of services or systems utilizing the affected library.

A vulnerability in fast-xml-parser allows an attacker to bypass entity expansion limits by crafting XML documents with multiple DOCTYPE declarations, leading to excessive CPU usage, memory exhaustion, and denial of service.

An incomplete fix for GHSA-72hv-8253-57qq in `jackson-core` versions 2.18.6, 2.21.1, and potentially 3.0.x/3.1.x, allows attackers to bypass `maxNumberLength` constraints in the non-blocking JSON parser by streaming JSON numbers in small chunks, leading to unbounded memory accumulation and denial of service in reactive applications.

The pyasn1 library is vulnerable to uncontrolled resource consumption (excessive CPU and memory) when converting BER/CER/DER-encoded REAL values to Python floats, which can lead to a denial of service (DoS) in applications that decode untrusted ASN.1 data and then perform operations like printing, logging, comparing, or arithmetic on the decoded `univ.Real` objects.

A critical denial of service vulnerability, CVE-2026-59892, exists in `@opentelemetry/propagator-jaeger` versions prior to 2.9.0, allowing an unauthenticated remote attacker to terminate Node.js applications configured with `JaegerPropagator` by sending a malformed percent-encoded value in `uber-trace-id` or `uberctx-*` HTTP headers, leading to an uncaught `URIError`.

The JavaScript library linkify-it is vulnerable to a quadratic-complexity Denial of Service (DoS) (CVE-2026-59887) due to an inefficient regular expression in its `mailto:` schema validator, which allows an unauthenticated attacker to block application event loops by supplying specially crafted input with repeated 'mailto:' strings.

A high-severity algorithmic complexity vulnerability (CVE-2026-59880) in the Immutable.js library's `Immutable.Map` and `Immutable.Set` allows an attacker to craft object keys that cause hash collisions, degrading performance from O(1) to O(N²) and leading to a CPU-bound denial of service in applications, particularly those running on single-threaded Node.js environments that ingest untrusted input as object keys.

A vulnerability in Immutable.js List methods (`#set`, `#setSize`, `#setIn`, `#updateIn`) allows a remote, unauthenticated attacker to trigger an infinite loop or heap exhaustion by providing a crafted numeric string index in the range `[2 ** 30, 2 ** 31)`. This leads to an unrecoverable Denial of Service (DoS) by causing a tight CPU spin or process abortion, with an additional silent data corruption issue in `setSize`. This vulnerability impacts application availability but not confidentiality or integrity, and can be triggered by a single small HTTP request.

A denial of service vulnerability (CVE-2026-61666) exists in the websocket-driver-ruby library when used to implement a WebSocket server via `WebSocket::Driver.server()`, allowing a remote attacker to send a malformed `Host` header causing a `URI::InvalidURIError` exception and subsequent server process crash if unhandled.

A vulnerability in CUPS, specifically affecting libcupsfilters and cups-filters, allows a remote, unauthenticated attacker to exploit the system, leading to a denial-of-service condition that disrupts the availability of the printing system.

A remote, unauthenticated attacker can exploit a vulnerability in rsyslog to perform a Denial of Service attack and potentially execute arbitrary code.

Multiple vulnerabilities in Red Hat Enterprise Linux, affecting components such as sssd, glib, and c-ares, can be exploited by an attacker to gain administrator privileges, bypass security measures, manipulate data, and trigger a denial-of-service condition.

A stack overflow vulnerability, identified as CVE-2026-38752, exists in the evaluate() function within the AWK editor (editors/awk.c) of BusyBox commit 371fe9, which allows attackers to trigger a Denial of Service (DoS) condition by providing a specially crafted AWK script.

A vulnerability, CVE-2026-64097, affects the `drm/amd/display` module in the Linux kernel due to insufficient validation of GPIO pin LUT table size, potentially leading to system instability or other security impacts on Linux systems utilizing AMD display drivers.

A heap overflow vulnerability (CVE-2026-38754) exists in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0. This flaw allows attackers to trigger a Denial of Service (DoS) by providing a specially crafted input, leading to application instability or unavailability.

A denial-of-service vulnerability (CVE-2026-59200) exists in Pillow's `PdfParser.PdfStream.decode()` function across versions 5.1.0 to 12.2.x, allowing an unauthenticated attacker to craft a malicious PDF file that, when processed by a vulnerable application, triggers excessive memory allocation (e.g., a ~950 KB file expanding to 1 GB), leading to server Out-of-Memory termination or severe service degradation.

A Denial of Service (DoS) vulnerability (CVE-2026-59873) exists in the `node-tar` library (npm/tar <= 7.5.18) due to a lack of hard upper bounds on total decompressed data or entry counts, allowing an unauthenticated attacker to craft a small 'Gzip Bomb' archive that exhausts server resources like disk space and CPU, leading to system-wide failure and service outages.

An unauthenticated remote attacker can cause a denial of service in `engine.io` by sending invalid binary POST requests with `Content-Type: application/octet-stream` to Engine.IO protocol v4 polling transports, leading to exhaustion of server-side resources such as HTTP connections, sockets, and file descriptors due to improper connection closure.

The mistune Python library, when used with the 'strikethrough', 'mark', or 'insert' plugins enabled, is vulnerable to an algorithmic-complexity denial-of-service (DoS) attack where an attacker can send specially crafted markdown input causing quadratic parsing time, leading to high CPU utilization and potential service outages.

A File Browser user with only `Create` permission can exploit CVE-2026-55667, an incomplete fix for CVE-2026-54094, to delete arbitrary files and directories outside their authorized scope by abusing the `ScopedFs.RemoveAll` function's symlink-following behavior during failed upload cleanup, leading to data loss, cross-tenant data deletion, or denial of service.

A vulnerability in Pillow's `PcfFontFile._load_bitmaps()` function allows for a decompression bomb check bypass when loading PCF fonts. Attacker-controlled glyph dimensions from the PCF `METRICS` section are passed directly to `Image.frombytes()` without validation, leading to excessive memory allocation. This can be exploited to cause denial of service (resource exhaustion) through either persistent attacks by providing matching bitmap data or transient attacks by providing a small PCF file with large declared dimensions, leading to a large C-heap buffer allocation before an exception. Systems loading PCF fonts from untrusted sources are at risk.

A vulnerability, CVE-2026-54060, in the Pillow library's `FontFile.compile()` method allows attackers to craft malicious BDF or PCF font files that bypass standard decompression bomb checks, causing an unchecked, massive memory allocation when processed, which can lead to a Denial of Service (DoS) via an Out-Of-Memory (OOM) crash in vulnerable applications.

A vulnerability (CVE-2026-55379) in Pillow's BdfFontFile component allows attackers to craft a malicious BDF font file with oversized BBX dimensions and an empty BITMAP section, bypassing documented decompression bomb protection and causing the Image.new() function to silently allocate large amounts of memory in the C-heap, leading to resource exhaustion and denial-of-service for applications processing untrusted BDF fonts.

The Pillow library contains an out-of-bounds read vulnerability in its McIdas AREA plugin when processing specially crafted image files opened from a filename, allowing an attacker to manipulate header words to define a 'stride' value smaller than the actual row width, leading to information disclosure through adjacent process memory leakage or denial of service due to a process crash (SIGBUS).

A denial of service vulnerability, CVE-2026-55514, exists in vLLM versions from 0.12.0 up to, but not including, 0.24.0, allowing an authorized remote user to send a specially crafted `/v1/completions` request that leverages pure prompt embeds with an M-RoPE-enabled model to trigger an assertion failure, causing the vLLM server application to fatally crash.

A quadratic Denial of Service (DoS) vulnerability exists in Tornado's `HTTPHeaders.add` method due to inefficient string concatenation for repeated header names, which, when processing a maliciously crafted HTTP request with numerous repeated headers, can block the server's single event loop for an extended period, leading to a high severity DoS if `max_header_size` is increased from its default 64KB.

A high-severity denial-of-service vulnerability (CVE-2026-64612) exists in libcupsfilters and cups-filters, allowing an unauthenticated attacker to cause the CUPS image filter process to abort by submitting a specially crafted PNG print job, leading to service disruption.

SurrealDB versions prior to 3.1.0 are vulnerable to a session hijacking flaw (CVE-2026-63757) where unauthenticated attackers can enumerate session UUIDs via the HTTP /rpc sessions method and impersonate authenticated sessions to read, write, and delete data, leading to privilege escalation.

SurrealDB versions prior to 3.1.0 contain a denial of service vulnerability in the RPC use handler that panics when the 'db' parameter is set without a corresponding namespace, allowing unauthenticated attackers to crash the server by sending a malformed WebSocket message to the /rpc endpoint.

FreeRDP before version 3.28.0 contains a heap-based buffer overflow in the `crypto_rsa_common()` function, exploitable pre-authentication by an unauthenticated attacker crafting a malicious ciphertext to cause a denial of service on the server when a client uses RDP Standard Security.

An attacker can exploit multiple vulnerabilities in IBM Langflow Desktop OSS to gain administrator privileges, execute arbitrary code, bypass security measures, manipulate and disclose data, or cause a denial-of-service condition, leading to full system compromise and data integrity/confidentiality breaches.

An authenticated remote attacker can exploit a vulnerability within ProFTPD to initiate a denial-of-service attack, leading to the unavailability of the FTP service. This flaw could be triggered by legitimate users or adversaries with valid credentials, causing operational disruption.

A vulnerability, CVE-2026-63825, has been disclosed for the 'gcov' utility, which is part of the GNU Compiler Collection, involving concurrent access crashes fixed by using atomic counter updates to ensure thread-safe operations, potentially leading to system instability or denial of service due to race conditions during data access.

A denial-of-service vulnerability (CVE-2026-63806) has been identified in KVM's ioeventfd datamatch handling, allowing a guest virtual machine to trigger a BUG_ON() condition on the host, leading to a system crash.

An authenticated SFTP user can trigger a heap-based buffer overflow in ProFTPD's mod_sftp module (CVE-2026-53994) by sending a malformed SFTP packet, leading to an integer underflow, an undersized buffer allocation, and subsequent heap corruption, which results in a reliable remote denial of service.

An authenticated attacker can exploit CVE-2026-11826, a heap-based buffer overflow in OpenPLC_v3's web interface, by sending a crafted HTTP POST request to the /modbus endpoint with an oversized device_name value, causing heap corruption, a runtime crash, and denial of service of the PLC process control loop, with no expected patch.

Unauthenticated attackers can exploit CVE-2024-58368 in SurrealDB versions prior to 1.1.0 by sending crafted HTTP REST API requests with malformed ID, DB, or NS headers, leading to an uncaught exception and server crash, resulting in denial of service.

A remote denial-of-service vulnerability (CVE-2026-62299) has been discovered in the CoreDNS rewrite-plugin that can lead to a nil-pointer panic when a downstream plugin returns an EDNS0 response without an OPT record, potentially causing service disruption.

IBM Storage Protect Client versions 8.1.0.0 through 8.1.27.1 and 8.2.0.0 through 8.2.1.0 are vulnerable to CVE-2026-13473, a heap-based buffer overflow caused by improper bounds checking, allowing a remote attacker to execute arbitrary code or crash the server.

IBM PowerVM Novalink is vulnerable to CVE-2026-9171, a denial-of-service attack where a remote unauthenticated attacker can send a specially-crafted request to cause the server to consume excessive memory resources, leading to system unavailability.

A denial of service vulnerability, identified as CVE-2026-59885, exists in the pyasn1 library caused by quadratic complexity in the processing of OBJECT IDENTIFIER and RELATIVE-OID, which can lead to a denial of service.

A remote denial of service vulnerability, CVE-2026-15709, exists in the libsoup library's websocket permessage-deflate extension, allowing an attacker to trigger a denial of service through unbounded decompression.

A remote denial of service vulnerability, CVE-2026-15711, exists in the libsoup library's WebSocket connection handling due to an oversized control frame protocol violation, allowing an attacker to cause service disruption.

A remote denial of service vulnerability, CVE-2026-15713, exists in the soupcache component of the Libsoup library due to a memory leak that leads to HTTP/2 frame window exhaustion, potentially causing application crashes or unresponsiveness.

Multiple vulnerabilities exist in CoreDNS that allow a remote, unauthenticated attacker to execute a Denial of Service (DoS) attack against the service, potentially leading to service disruption and unavailability for affected systems utilizing CoreDNS.

A high-severity vulnerability (CVE-2026-52870) in the MCP Python SDK's experimental task handlers, specifically in versions 1.23.0 through 1.27.1, allows any connected client to observe, read results from, and cancel tasks belonging to other clients due to a lack of session validation, potentially leading to unauthorized data access and denial of service.

A denial-of-service vulnerability (CVE-2026-9653) in Rockwell Automation 1756-EN2, 1756-EN3, and 1756-ENBT communication modules, due to improper validation of CIP Implicit Connection packets, allows an unauthenticated network attacker to continuously disrupt device connections.

Multiple vulnerabilities, including out-of-bounds write, out-of-bounds read, and divide-by-zero, exist in AutomationDirect Productivity Suite versions up to and including v4.6.2.2, allowing an attacker with local or physical access to exploit these flaws via crafted IOCTL requests, potentially leading to kernel memory corruption, privilege escalation, information disclosure, application instability, or a denial-of-service condition.

A high-severity denial-of-service vulnerability, CVE-2026-15352, affects NASA Core Flight System (cFS) Health & Safety (HS) Application versions prior to v7.0.1, allowing an unauthenticated attacker to crash the application via a crafted Housekeeping Telemetry request, leading to service disruption in critical infrastructure sectors like Transportation Systems.

A denial-of-service vulnerability (CVE-2026-12659), categorized as a Double Free issue (CWE-415), exists in Rockwell Automation Flex 5000 Adapter version 6.011 due to improper handling of crafted CIP packets, which could allow an unauthenticated attacker to cause a denial-of-service condition requiring a power cycle to recover.

Multiple Rockwell Automation CompactLogix, ControlLogix, Compact GuardLogix, and GuardLogix product versions are vulnerable to denial-of-service conditions through CVE-2025-12011, CVE-2025-12012, and CVE-2025-11698, which an attacker can exploit via buffer overflows by loading invalid project files or writing invalid data, causing controllers to enter a major non-recoverable fault.

A vulnerability, identified as CVE-2026-6424, has been discovered in various ESET Endpoint Antivirus and Server Security product versions, allowing an attacker to cause a denial of service, impacting the availability of the affected systems.

Multiple vulnerabilities in FreeRDP allow an attacker to execute arbitrary code, bypass security controls, disclose sensitive information, tamper with data, or cause a denial-of-service, posing a high risk to systems using the software.

An attacker can exploit multiple vulnerabilities in Absolute Secure Access to perform a denial of service attack or disclose confidential information.

An unauthenticated, remote attacker can exploit a vulnerability in F5 BIG-IP and BIG-IP Next to perform a Denial of Service attack, potentially disrupting services.

An anonymous, remote attacker can exploit multiple vulnerabilities in Gitea to manipulate data or trigger a denial of service.

A critical stack-based buffer overflow vulnerability, CVE-2026-48863, has been identified in the PGP verification component of libsolv, allowing a remote attacker to trigger a denial of service by crafting a malicious Ed25519 PGP signature with mismatched MPI lengths, impacting automated package or repository processing workflows.

A vulnerability (CVE-2026-23538) exists in the Feast Feature Server's /ws/chat endpoint, allowing remote attackers to establish numerous unauthenticated, persistent WebSocket connections. This exploit, a form of resource exhaustion (CWE-770), consumes server resources like memory, CPU, and file descriptors, leading to a complete denial of service for legitimate users. Affected versions are those prior to 0.59.0.

A vulnerability (CVE-2026-50276) in Datadog tracing libraries, specifically `dd-trace-rb` versions prior to 2.32.0, allows a remote and unauthenticated attacker to perform a Denial of Service (DoS) by sending HTTP requests with malformed W3C baggage headers, leading to unbounded CPU and memory consumption.

Pomerium proxy deployments using the stateless authentication flow (Pomerium Zero or hosted authenticate) are vulnerable to a pre-authentication memory exhaustion denial of service, allowing an unauthenticated attacker to send specially crafted HPKE-encrypted zstd payloads to the `/.pomerium/callback` endpoint, leading to excessive memory allocation and potential proxy crashes.

A vulnerability, CVE-2026-50274, in Datadog's `dd-trace-go` library (versions <= 1.24.1 and v2 < 2.8.1) allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending HTTP requests with oversized W3C baggage headers, leading to unbounded CPU and memory consumption in instrumented services.

A Denial of Service (DoS) vulnerability exists in Datadog tracing libraries (`dd-trace-dotnet`) due to improper parsing of W3C baggage HTTP headers, allowing remote, unauthenticated attackers to send requests with arbitrarily large baggage headers, causing unbounded CPU and memory consumption and leading to service unavailability for any HTTP service instrumented with affected library versions where baggage propagation is enabled by default. The issue, tracked as CVE-2026-50273, is resolved in version 3.43.0 and later.

The Datadog `dd-trace-js` library, specifically versions older than 5.100.0, is vulnerable to a Denial of Service (DoS) attack where improper parsing of W3C baggage HTTP headers allows a remote, unauthenticated attacker to send requests with an arbitrarily large number of comma-separated key-value pairs, leading to unbounded CPU and memory consumption and enabling a remote DoS against any HTTP service instrumented with the affected library where baggage propagation is enabled.

The Datadog dd-trace-py tracing library, versions prior to 4.8.2, is vulnerable to a Denial of Service (DoS) attack due to improper parsing of W3C baggage HTTP headers, which fails to enforce item-count or byte-size limits on the extraction path, allowing an unauthenticated attacker to send a request with an arbitrarily large baggage header causing unbounded CPU and memory consumption.

A denial-of-service vulnerability, CVE-2026-50270, exists in Datadog tracing libraries (dd-trace-java prior to version 1.62.0) that implement W3C baggage propagation. Remote, unauthenticated attackers can exploit this by sending HTTP requests with W3C baggage headers containing an arbitrarily large number of comma-separated key-value pairs. The tracer, when extracting these headers, fails to enforce item-count or byte-size limits, leading to unbounded CPU and memory consumption as it allocates hash-map entries for each pair, thereby causing a denial of service against the instrumented HTTP service.

A memory exhaustion vulnerability, CVE-2026-62389, exists in the 'ws' WebSocket library versions prior to 8.21.1, allowing attackers to exhaust server memory via incomplete fragmented WebSocket messages and cause denial of service.

An unauthenticated attacker can trigger a denial-of-service condition in services that decode untrusted protobuf messages using the `Protobuf.Decoder` (Hex package `protobuf`) versions between 0.8.0 and 0.16.1 by crafting deeply nested self-referential message types, leading to memory exhaustion and service crashes.

An overly restrictive account lockout mechanism vulnerability, CVE-2023-4346, in KNX Association KNX Protocol Connection Authorization Option 1 could allow an attacker to purge all devices without additional security options enabled and set a BCU key to lock the device, leading to denial of service and data destruction.

A denial-of-service vulnerability (CVE-2026-59762) exists in F5 BIG-IP systems when an HTTP/2 profile is configured on a virtual server, where undisclosed requests can lead to increased memory resource utilization, degrading system performance and potentially causing the TMM process to restart, allowing a remote, unauthenticated attacker to cause a denial-of-service condition affecting the data plane.

A remote, unauthenticated attacker can exploit a vulnerability in Perl to cause a Denial of Service condition.

Multiple vulnerabilities exist in WebKitGTK that can be exploited by a remote, unauthenticated attacker for information disclosure, denial of service, data manipulation, and security mechanism bypass.

An attacker can exploit multiple vulnerabilities within the Netty framework to bypass security checks, manipulate requests or headers, circumvent certificate validations, and cause a denial of service.

A vulnerability in Red Hat Enterprise Linux (pacemaker) allows a remote, unauthenticated attacker to perform a Denial of Service attack, potentially disrupting the availability of affected systems.

A high-severity denial of service vulnerability, identified as CVE-2026-14251, exists in the OpenShift GitOps operator where a namespace-scoped Argo CD instance can trigger the deletion of a cluster-scoped Argo CD instance's ClusterRole by exploiting a name collision due to improper resource ownership validation.

A denial-of-service vulnerability, CVE-2026-57220, exists in the RabbitMQ stream listener that allows an unauthenticated attacker to exhaust memory resources by not properly enforcing frame-size limits during authentication, leading to service disruption.

Remote and unauthenticated attackers can exploit multiple unspecified vulnerabilities within Python to conduct Denial of Service attacks, potentially disrupting the availability of services or applications running on the language.

A denial-of-service vulnerability, CVE-2026-59203, exists in the Python imaging library Pillow, affecting versions 12.0.0 through 12.2.0, where a specially crafted EPS file with a negative byte count in the `%%BeginBinary` directive can cause an infinite loop and resource exhaustion when processed by the `Image.open()` function, leading to application unresponsiveness.

A high-severity denial of service vulnerability, identified as CVE-2026-44891, exists in the `StompSubframeDecoder` component of Netty's `netty-codec-stomp` library, allowing an unauthenticated attacker to exhaust server memory and cause an `OutOfMemoryError` by sending a STOMP message with an excessive number of headers, leading to application crashes.

A denial-of-service vulnerability, CVE-2026-59204, exists in the Pillow Python imaging library versions 8.2.0 through 12.2.0, allowing a remote attacker to trigger an out-of-memory error and crash applications by processing a specially crafted tiled JPEG2000 image.

Trivy versions prior to 0.71.0 are vulnerable to CVE-2026-54448, a denial-of-service attack where a crafted Helm chart archive (.tgz) can cause unbounded memory consumption, leading to the OS OOM killer terminating the Trivy process and other services on the host or CI runner.

Hoverfly, when running in Diff mode, is vulnerable to a denial-of-service condition due to a concurrent map write race condition in the `AddDiff()` function. Multiple proxy requests processed simultaneously cause unsynchronized writes to the shared `responsesDiff` map, triggering Go's built-in race detector and a `fatal error`, which immediately terminates the Hoverfly process. This vulnerability is trivially exploitable by sending multiple concurrent requests to the proxy port, leading to a full denial of service that cannot be recovered without a restart.

An unauthenticated remote attacker can exploit a vulnerability in the MKP (Model Context Protocol for Kubernetes) server to exhaust its memory and cause a denial of service by sending a crafted `tools/call` request that manipulates `limitBytes` or `tailLines` parameters, leading to unbounded Kubernetes pod log reads into memory.

A remote, unauthenticated attacker can exploit an unspecified vulnerability in Ollama to execute a Denial of Service (DoS) attack, disrupting service availability.

An HTTP Request Smuggling vulnerability (CVE-2026-27690, CWE-444) in SAP Approuter allows an unauthenticated attacker to send a specially crafted HTTP request leading to request-response desynchronization, which can result in the exposure of user responses and cause a denial of service by making the system unavailable.

An unbounded CPU Denial-of-Service vulnerability exists in the `json_repair` library's `SchemaRepairer.resolve_schema()` function, allowing an unauthenticated attacker to provide a specially crafted JSON schema containing a circular `$ref` pointer, leading to indefinite CPU consumption and service unavailability.

A critical unauthenticated access vulnerability, CVE-2026-59801, in 9Router versions up to 0.4.41 allows remote attackers to bypass authentication on provider management API endpoints, enabling them to enumerate, create, modify, or delete connections, leading to credential exposure, AI traffic redirection, or complete denial of service.

A local attacker can exploit a vulnerability in libTIFF to execute arbitrary code and perform a denial of service attack against the system where the library is used.

A remote, anonymous attacker can exploit a vulnerability in the GraphicsMagick PCD decoder to potentially execute arbitrary code, corrupt memory, or cause a denial-of-service condition. This flaw could lead to compromise of the system running the affected software or disruption of its availability.

A remote, unauthenticated attacker can exploit a vulnerability in Django, Debian Linux, and Ubuntu Linux to initiate a Denial of Service attack, potentially disrupting services and making them unavailable to legitimate users.

A remote, unauthenticated attacker can exploit an unspecified vulnerability in Django to conduct a Denial of Service attack, which could disrupt the availability of services running on the affected Django application.

A remote, unauthenticated attacker can exploit an unspecified vulnerability within CPython to launch a Denial of Service attack, affecting the CPython interpreter across various operating systems.

Crawl4AI versions prior to 0.8.7 are vulnerable to CVE-2026-56260, an arbitrary file write vulnerability in its Docker API server's /screenshot and /pdf endpoints, allowing unauthenticated attackers to supply path traversal or absolute file paths via the output_path parameter to overwrite server files, leading to denial of service or impaired defenses.

A vulnerability, CVE-2026-59869, in the `js-yaml` library allows attackers to craft malicious YAML merge-key chains, which can lead to quadratic CPU consumption and a Denial of Service condition in applications processing the input.

CVE-2026-59928 identifies a vulnerability in the Mistune block_parser component where quadratic-time parsing of long lists of repeated reference-link definitions can be exploited by an attacker to cause a denial-of-service condition due to excessive resource consumption.

CVE-2026-58252 identifies an authorization bypass vulnerability in NATS Server, described as a 'Subscribe Authz Bypass via Wildcard-Overlap', which allows unauthorized access or actions by exploiting how wildcard subscriptions are handled.

An unbounded row index allocation vulnerability (CWE-770) exists in the `checkSheet()` function of the `github.com/xuri/excelize/v2` library, allowing an unauthenticated attacker to craft a malicious XLSX file with a specially crafted row index value that triggers an out-of-memory error or runtime panic, leading to a denial-of-service condition in Go applications processing untrusted spreadsheets.

A critical vulnerability in the `@libp2p/gossipsub` library allows an unauthenticated attacker to cause a CPU-based Denial of Service by sending oversized IHAVE and IWANT control messages, which are synchronously processed, leading to Node.js event loop exhaustion and service disruption.

A remote denial-of-service vulnerability, CVE-2026-15308, has been discovered in CPython, allowing an attacker to cause service disruption to affected systems not running the latest security patch.

An attacker with physical access can exploit multiple unspecified vulnerabilities in DENX U-Boot to execute arbitrary code with service privileges, leading to system compromise and potentially causing a denial-of-service condition.

Multiple high-severity vulnerabilities exist within the EDK2 NetworkPkg IP stack implementation, allowing an attacker, either from an adjacent network or remotely and anonymously, to achieve arbitrary code execution, disclose confidential information, and trigger a denial of service condition, impacting the low-level networking capabilities and security of systems utilizing this firmware component.

A critical vulnerability, CVE-2026-48594, in the Tesla Elixir HTTP client library allows an attacker to cause a denial of service by serving a specially crafted HTTP response with multiple `content-encoding` headers that, when processed by vulnerable versions (0.6.0 through 1.18.2) of the client using `Tesla.Middleware.DecompressResponse` or `Tesla.Middleware.Compression`, leads to exponential memory expansion and application crashes.

A high-severity denial-of-service vulnerability (CVE-2026-48597) in the `Tesla.Adapter.Mint` component of the Elixir Tesla HTTP client library, affecting versions 1.3.0 through 1.18.2, allows an unauthenticated attacker to crash the underlying BEAM VM by supplying untrusted URL schemes, leading to atom exhaustion.

The Mistune Python Markdown parser is vulnerable to a CPU exhaustion Denial of Service (DoS) attack, identified as CVE-2026-49851, due to a superlinear (O(n²)) parsing behavior in the `parse_link_text` function when processing specially crafted input containing repeated square brackets, allowing an attacker to significantly degrade application performance with a small payload.

A malicious or compromised HTTP/2 server can exploit CVE-2026-49754 in the Elixir Mint HTTP/2 client by sending an endless chain of CONTINUATION frames without an END_HEADERS flag, leading to unbounded memory accumulation, process exhaustion, and remote unauthenticated denial-of-service.

A malicious or compromised HTTP/2 server can exploit CVE-2026-48862 in Mint HTTP/2 clients by flooding them with PUSH_PROMISE frames and withholding corresponding HEADERS, leading to unbounded memory consumption and denial-of-service.

A vulnerability, CVE-2026-57028, in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to gain unauthorized access to internal license management processes via an exposed internal port, leading to license exhaustion and ultimately a denial-of-service condition.

An unauthenticated, network-based attacker can exploit CVE-2026-57026, an improper input validation vulnerability, in the SIP plugin of Juniper Networks Junos OS. If the SIP ALG is enabled on affected MX Series with SPC3 or SRX Series devices, processing a malformed SIP invite packet will cause the flow processing daemon (flowd) to crash and restart, leading to a complete denial of service until the system recovers.

An Improper Validation of Specified Quantity in Input vulnerability (CVE-2026-57023) in the TCP proxy plugin of Juniper Networks Junos OS on MX Series with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial of Service (DoS) by sending a specifically malformed TCP header packet, crashing the flow processing daemon (flowd) until automated recovery.

The China-nexus threat actor UAT-7810 is expanding its Operational Relay Box (ORB) networks by exploiting known vulnerabilities in unpatched Ruckus and ASUS routers to deploy custom backdoors like LONGLEASH and DOGLEASH, while other threats include the ARToken Phishing-as-a-Service platform targeting Microsoft 365, critical flaws in AirDrop/Quick Share, and a backdoor in Tenda router firmware.

Cesanta Mongoose before version 7.22 contains an out-of-bounds read vulnerability (CVE-2026-11404) in its built-in TLS server function, `mg_tls_server_recv_hello()`, allowing a remote, unauthenticated attacker to send a specially crafted TLS ClientHello message with an oversized session ID length, leading to a service crash and denial of service for HTTPS, MQTTS, or WSS services.

A memory exhaustion vulnerability (CVE-2026-49476) in the soupsieve CSS selector parser, an indirect dependency of Beautiful Soup 4, allows an unauthenticated attacker to cause a denial of service by supplying a crafted, large comma-separated CSS selector string to applications using `soupsieve.compile()` or Beautiful Soup's `.select()`/`.select_one()`, leading to unbounded memory allocation and system resource exhaustion.

A stack buffer overflow vulnerability, CVE-2026-59692, exists in GStreamer's DTLS plugin, allowing a remote unauthenticated attacker to cause a denial of service by sending a crafted certificate with an oversized Subject Distinguished Name during a DTLS handshake, which the plugin prints into a fixed-size stack buffer without bounds checking, leading to a process crash.

A heap buffer overflow vulnerability (CVE-2026-59691) exists in GStreamer's rfbsrc plugin, allowing a malicious RFB/VNC server to trigger an out-of-bounds heap write in connecting clients, leading to denial of service and potential memory corruption.

Multiple vulnerabilities in MailPit allow an attacker to perform a Denial of Service attack against the application, leading to disruption of service for users.

Multiple vulnerabilities exist in Juniper JUNOS, JUNOS Evolved, and various Juniper network device series (EX, MX, QFX, SRX), allowing an attacker to achieve denial of service, disclose sensitive information, execute arbitrary code, or trigger undefined system behavior.

Multiple critical vulnerabilities in IBM Operational Decision Manager allow an attacker to achieve arbitrary code execution, elevate privileges, perform denial of service attacks, disclose information, manipulate files, and bypass security measures.

A vulnerability in Wazuh allows a remote, authenticated attacker to perform a denial of service attack, which could disrupt the availability of the Wazuh platform.

A remote, unauthenticated attacker can exploit a vulnerability in Golang components within Red Hat OpenShift, Red Hat Ansible Automation Platform, and Red Hat Enterprise Linux to conduct a Denial of Service attack, leading to service disruption.

A high-severity denial-of-service vulnerability, CVE-2026-60000, affects OpenSSH versions prior to 10.4, allowing remote attackers to exhaust server resources through excessive and mishandled GSSAPI authentication attempts, leading to service unavailability.

A Denial of Service vulnerability, identified as CVE-2026-47241, exists in the Net::IMAP library due to incomplete raw argument validation, potentially allowing an attacker to cause an application crash or unresponsiveness.

A denial-of-service vulnerability (CVE-2026-59803) in rpcx through version 1.9.3 allows an unauthenticated attacker to trigger out-of-memory conditions and service unavailability by sending a small, compressed message that expands to gigabytes of memory during decompression.

An integer underflow vulnerability (CVE-2026-29008) in U-Boot's `tcp_rx_state_machine()` function allows a network-adjacent attacker to crash the bootloader by sending a crafted TCP SYN+ACK packet, potentially preventing device boot and leading to memory corruption.

Palo Alto Networks has disclosed multiple buffer overflow vulnerabilities (CVE-2026-0288) in their PAN-OS User-ID Terminal Server Agent (TSA) component, which an unauthenticated attacker with network access can exploit by sending specially crafted network traffic to cause a denial of service (DoS) or potentially achieve arbitrary code execution, affecting various versions of PAN-OS, Cloud NGFW, and Prisma Access if the TSA is exposed to untrusted networks.

Multiple denial of service vulnerabilities, tracked as CVE-2026-0287, in Palo Alto Networks PAN-OS software allow an unauthenticated attacker to cause a DoS condition by sending specially crafted network traffic, potentially forcing the firewall into maintenance mode.

A critical vulnerability, CVE-2026-56250, in Capgo before version 12.128.2 allows an authenticated attacker with upload-scoped API keys to manipulate the app_versions.r2_path field via PostgREST, leading to arbitrary R2 bundle object deletion and denial of service.

Multiple vulnerabilities in Red Hat Enterprise Linux and the 389-ds-base component allow a remote, authenticated attacker to execute arbitrary code or cause a Denial-of-Service condition.

Multiple vulnerabilities in X.Org X11 and Xwayland allow an attacker to cause a denial of service or potentially execute arbitrary program code, posing a significant risk to systems utilizing these display server implementations, potentially leading to system instability or full compromise.

Multiple critical vulnerabilities, including improper access control (CVE-2026-20744), improper restriction of excessive authentication attempts (CVE-2026-42952), and insufficient session expiration (CVE-2026-44383), affect Hydro-Québec Le Circuit Electrique charging station backend versions prior to June 2026, which if exploited could lead to privilege escalation or denial-of-service impacting critical transportation infrastructure.

A heap buffer overflow vulnerability (CVE-2026-11610) exists in the SASL I/O layer of 389 Directory Server (389-ds-base), active since version 1.3.2. An authenticated attacker can send a specially crafted, oversized LDAP UNBIND packet after a successful SASL bind with integrity protection. This causes approximately 2 megabytes of attacker-controlled data to overflow a 512-byte heap buffer in sasl_io_recv(), leading to a denial of service (server crash).

Multiple critical unauthenticated API vulnerabilities in 9Router versions up to 0.4.41 allow an attacker to perform full CRUD operations on provider connections, leak plaintext API keys, and access sensitive conversation history, posing risks of data exfiltration and denial of service.

When Cilium L7 functionality is enabled, a world-accessible Envoy admin socket is inadvertently created on cluster nodes. This misconfiguration (CVE-2026-49445) allows a local attacker to gain unauthorized access to Envoy's administrative endpoints, leading to sensitive information disclosure, such as the exposure of TLS secrets, and significant cluster disruption, including the interruption of traffic and the termination of Envoy processes.

A vulnerability in the dhcpcd DHCP client daemon allows an attacker from an adjacent network to execute a Denial of Service attack, potentially disrupting network connectivity on affected Linux systems.

Attackers utilize DHCP starvation by flooding network segments with DHCP DISCOVER messages containing a high cardinality of distinct client MAC addresses to exhaust the DHCP lease pool, potentially leading to denial of service for legitimate clients and facilitating rogue DHCP server deployment.

A memory-safety vulnerability, CVE-2022-43607, in Open Babel's MOL2 parser allows an out-of-bounds write when processing a crafted input file, potentially leading to denial of service or arbitrary code execution.

An unauthenticated regex injection vulnerability exists in Rancher Fleet's webhook endpoint when it's configured without a secret, allowing attackers to forge webhook requests using unsanitized repository URL components, which leads to continuous repository re-cloning, causing network and resource exhaustion (Denial of Service) on the management cluster, and potentially service downgrades if the attacker has read access to the target Git repository.

A CPU exhaustion vulnerability (CVE-2026-49250) exists in Conform's `parseSubmission` API when parsing `FormData` or `URLSearchParams` with many unique field names, allowing an attacker to craft a submission that causes excessive synchronous CPU work and potential denial of service by repeatedly scanning submitted entries.

The Grackle AI MCP tool layer, specifically versions of `@grackle-ai/mcp`, `@grackle-ai/plugin-core`, and `@grackle-ai/auth` up to `0.132.1`, suffers from an authorization bypass (IDOR) due to inconsistent inline checks, allowing a compromised scoped agent to perform unauthorized cross-task and cross-session operations, leading to data manipulation, denial of service, and sensitive data disclosure across workspaces.

A remote unauthenticated attacker can exploit CVE-2026-52736 in Zebra's `zebrad` node (versions up to and including `v4.4.1`) to permanently stall a targeted blockchain node by poisoning its sent-hash cache, leading to a denial of service.

A high-severity vulnerability, CVE-2026-52746, in JSONata versions prior to 2.2.0 allows unauthenticated attackers to cause a denial of service by exploiting superlinear backtracking in the ISO-8601 validation regex through malicious inputs to the `$toMillis` function, leading to resource exhaustion and application unresponsiveness.

A remote unauthenticated peer can exploit an address normalization mismatch in Zebra's address book when connecting via IPv4 to a dual-stack IPv6 listener on a Linux host, by then advertising an invalid mempool transaction, which triggers a deterministic assertion panic after a 30-second delay, causing the `zebrad` process to terminate, leading to persistent denial of service.

SimpleSAMLphp and its SAML2 library are vulnerable to CVE-2026-49289, allowing attackers to perform a Denial-of-Service attack by sending specially crafted SAML messages containing XPath transforms, leading to resource exhaustion and service unavailability.

The Steeltoe.Discovery.Eureka client contains a vulnerability (CVE-2026-50196) where its `DataCenterInfo.FromJson` method throws an `ArgumentException` if a `DataCenterInfo.name` value other than 'MyOwn' or 'Amazon' is encountered, specifically missing the valid 'Netflix' value from the Java Eureka specification, which causes the local service registry to become permanently empty or stale, leading to a complete service discovery outage for all connected Steeltoe Eureka clients.

An authentication bypass vulnerability in `backpropagate` versions >= 1.1.0 and < 1.2.0 allows unauthenticated attackers to gain full control over the Reflex web UI, even when HTTP Basic authentication is ostensibly enabled via the `--auth` flag, permitting data exfiltration, arbitrary training runs, HuggingFace Hub push, disk-fill DoS, and sensitive path discovery.

An unauthenticated attacker can trigger a denial-of-service condition in applications using the Faraday Ruby library by sending deeply nested query parameters (CVE-2026-54297), leading to `SystemStackError` and application crashes due to uncontrolled recursion.

The `Oj.dump` function in the `Oj` Ruby gem is vulnerable to a stack-based buffer overflow (CVE-2026-54502) due to improper validation of the `:indent` parameter, allowing an attacker to trigger a process crash or potentially remote code execution by providing an excessively large integer value, affecting all `Oj` gem versions prior to `3.17.2`.

The `undici` WebSocket client is vulnerable to CVE-2026-12151, a high-severity denial of service attack where a malicious WebSocket server can stream numerous small continuation frames that bypass `maxPayloadSize` checks, causing unbounded memory growth and exhaustion in affected client processes.

A vulnerability in the vim text editor allows a remote, unauthenticated attacker to perform a Denial of Service attack by exploiting a weakness to disrupt the service without requiring prior authentication.

Multiple vulnerabilities have been discovered in the expat XML parser library that can be exploited by a local attacker, potentially leading to a Denial of Service condition or allowing for arbitrary code execution on the affected system.

An unauthenticated attacker can exploit a vulnerability in the PHP JWT Library's PBES2AESKW::unwrapKey() function when processing JWE tokens that use PBES2-HS*+A*KW algorithms by crafting a JWE with an excessively large 'p2c' (PBKDF2 iteration count) parameter in the JOSE header, forcing the server to perform an unbounded and CPU-intensive PBKDF2 computation, resulting in a CPU-amplification denial of service.

The spomky-labs/otphp library is vulnerable to a denial of service (GHSA-g7m4-839x-ch6v) where an unbounded 'digits' parameter in an otpauth provisioning URI causes a DivisionByZeroError, leading to unhandled fatal errors in applications trying to generate or verify OTPs.

An unauthenticated attacker can exploit CVE-2026-55204, a null pointer dereference vulnerability in HAProxy through version 3.4.0, by triggering excessive HPACK dynamic table insertions under memory pressure, causing HAProxy worker processes to crash and resulting in a denial of service.

Multiple vulnerabilities, CVE-2026-45491 and CVE-2026-45591, have been discovered in Microsoft .Net and ASP.NET Core versions, allowing a remote attacker to cause a denial of service and compromise data integrity across Windows, Linux, and macOS platforms.

Multiple vulnerabilities, including CVE-2025-10263, CVE-2026-42487, CVE-2026-42488, CVE-2026-42489, and CVE-2026-42490, have been discovered in Xen, allowing an attacker to achieve privilege escalation, trigger a remote denial of service, and compromise data confidentiality on vulnerable hypervisor instances.

Multiple vulnerabilities exist in X.Org X11 and Xwayland, allowing attackers to disclose information, escalate privileges, conduct denial-of-service attacks, and perform unspecified attacks.

Multiple vulnerabilities in NetApp products, including CVE-2023-0482, CVE-2023-20863, CVE-2024-22257, CVE-2025-23367, CVE-2025-48976, CVE-2025-53816, and CVE-2025-53817, could lead to remote denial of service, data confidentiality breaches, and data integrity breaches.

A remote, anonymous attacker can exploit multiple vulnerabilities in ImageMagick to cause a denial of service condition, disclose information, and bypass security mechanisms.

A remote, anonymous attacker can exploit a vulnerability in the PostgreSQL JDBC Driver to perform a denial-of-service attack, impacting availability.

Multiple vulnerabilities in IBM Business Automation Workflow can be exploited by an attacker to bypass security measures, conduct a denial of service attack, disclose information, manipulate files, and conduct a cross-site scripting attack.

Multiple vulnerabilities in IBM App Connect Enterprise could allow an attacker to bypass security measures, manipulate data, disclose sensitive information, cause a denial-of-service condition, or perform other unspecified attacks.

An authorization bypass vulnerability exists in praisonai-platform where any member can remove any other member, including the workspace owner, due to missing role checks and owner protection logic, allowing an attacker to lock the legitimate owner out of their own workspace, leading to a permanent denial-of-service and potential workspace takeover (CVE-2026-47409).

Gotenberg is vulnerable to a remote denial-of-service (DoS) in multipart `downloadFrom` handling, where a crafted multipart request with multiple `downloadFrom` entries causes concurrent goroutines to write to shared maps without synchronization, leading to process termination.

Multiple vulnerabilities in Elastic Kibana allow for privilege escalation, remote denial of service, data breach, server-side request forgery (SSRF), and cross-site scripting (XSS).

Multiple vulnerabilities exist in Check Point Security Gateway that could be exploited by an attacker to perform a denial of service attack, disclose information, and perform a SQL injection attack.

CVE-2026-46185 is an out-of-bounds read vulnerability in the SMB client component within the symlink_data() function, potentially leading to information disclosure or denial of service.

CVE-2026-46172 is a vulnerability related to ipv6: xfrm6: release dst on error in xfrm6_rcv_encap(), potentially leading to a denial-of-service condition.

A denial-of-service vulnerability exists in strongSwan version 5.9.13 due to a flaw in the eap-radius plugin when built with DAE enabled, allowing remote attackers to exhaust worker threads by sending a crafted RADIUS Access-Request (CVE-2026-35333).

Multiple vulnerabilities in GitLab CE/EE allow attackers to cause remote denial of service and bypass security policies in versions 18.11.x before 18.11.4, 19.x before 19.0.1, and before 18.10.7; these vulnerabilities are tracked as CVE-2026-1402, CVE-2026-2601, CVE-2026-2710, CVE-2026-4868, CVE-2026-5296, CVE-2026-6713, and CVE-2026-8716.

A local attacker can exploit multiple vulnerabilities in the Linux Kernel to escalate privileges, cause a denial-of-service condition, disclose sensitive information, or perform an unspecified attack.

A remote, anonymous attacker can exploit a vulnerability in VMware Tanzu Spring Framework to perform a denial of service attack.

Multiple vulnerabilities in Vim could allow an attacker to execute arbitrary code or cause a denial of service condition.

A remote, authenticated attacker can exploit multiple vulnerabilities in IBM DB2 to perform a denial of service attack, potentially disrupting database services.

CVE-2026-46099 describes a vulnerability in the IPv6 network stack related to NOREF dst use in seg6 and rpl lwtunnels, requiring a security update to address potential exploitation.

Multiple vulnerabilities in Check Point Security Gateways and Spark Firewalls allow for remote denial of service, data confidentiality breaches, and data integrity compromise.

IBM Aspera High-Speed Transfer Endpoint and Server versions 3.7.4 through 4.4.7 Fix Pack 1 are vulnerable to a denial-of-service (DoS) attack where an unauthenticated user can crash the asperahttpd service.

IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 are vulnerable to a denial-of-service (DoS) attack via a specially crafted query when autonomous transactions are enabled, potentially leading to service disruption.

IBM Aspera High-Speed Transfer Endpoint and Server are vulnerable to a buffer overflow in the asperahttpd component, potentially leading to denial of service, authentication bypass, or remote code execution.

Multiple vulnerabilities in IBM DB2 allow a remote, authenticated, or local attacker to disclose information, bypass security measures, or cause a denial of service.

Multiple vulnerabilities in CODESYS could allow an attacker to escalate privileges, manipulate data, or cause a denial of service.

IBM HTTP Server 8.5 and 9.0 are vulnerable to a heap-based buffer overflow, allowing a privileged, authenticated user to execute arbitrary code or cause a denial of service.

IBM HTTP Server 8.5 and 9.0 are vulnerable to a denial-of-service (DoS) attack due to a flaw in the optional `mod_mem_cache` module that can be triggered remotely.

A vulnerability, CVE-2025-11482, exists in ABB's PPT30 Operating System related to handling concurrent connections in the PPT30 OPC-UA Server, affecting versions prior to 1.8.0.

NordVPN version 6.14.31 is vulnerable to a denial-of-service attack (CVE-2018-25368) where an unauthenticated attacker can crash the application by submitting an excessively long string in the password field.

A remote, anonymous attacker can exploit multiple vulnerabilities in PuTTY to perform a denial of service attack, manipulate data, and possibly carry out spoofing attacks.

Multiple vulnerabilities in the Intel NPU Driver allow a local attacker to escalate privileges and cause a denial of service.

A remote, anonymous attacker can exploit a vulnerability in NGINX Open Source and NGINX Plus to perform a denial-of-service attack and potentially execute arbitrary code.

A public exploit is available for CVE-2026-38422, a critical remote code execution vulnerability in Arendst Tasmota affecting devices running version <= 15.3.0.3 with scripter support enabled via combined buffer overflows in the `fetch_jpg()` function.

A denial-of-service vulnerability, CVE-2026-47138, exists in Parse Server due to inefficient regular expression handling of the client SDK version field in HTTP requests, allowing an unauthenticated attacker to exhaust server resources by sending a crafted request with a malicious `X-Parse-Client-Version` header or `_ClientVersion` body field.

A remote denial-of-service vulnerability exists in Stormshield Network Security (SNS) versions 4.3.x before 4.3.43, 4.4.x to 4.8.x before 4.8.16, and 5.x before 5.0.6, allowing an attacker to disrupt service availability.

Multiple vulnerabilities in PowerDNS Authoritative Server allow an attacker to disclose information, manipulate data, and cause a denial-of-service condition.

Russh versions up to 0.60.2 are vulnerable to a memory-safety hardening issue due to unchecked `CryptoVec` allocation and growth handling, reachable from local agent inputs and remote SSH traffic, potentially triggering a process abort under constrained memory conditions.

A remote denial-of-service vulnerability (CVE-2026-46545) exists in Nimiq primitives where an unauthenticated peer can send a malicious chunk with an empty key, leading to a panic when `put_raw` attempts to store a value at the root node, causing the node process to abort.

A denial-of-service vulnerability exists in BookStack version 25.12.1, and a public exploit (EDB-52571) is available, increasing the risk to unpatched systems.

A remote, anonymous attacker can exploit multiple vulnerabilities in Internet Systems Consortium BIND to trigger memory corruption or cause a denial-of-service condition.

A vulnerability in ffmpeg allows an attacker to execute arbitrary program code and potentially conduct a denial of service attack.

A remote, authenticated attacker can exploit a vulnerability in vllm and PyTorch to cause a denial-of-service condition or potentially achieve remote code execution.

A remote, authenticated attacker can exploit a vulnerability in vllm to disclose information or cause a denial-of-service condition.

CVE-2026-44390 is a denial-of-service vulnerability in Microsoft products due to unbounded name compression.

Microsoft disclosed CVE-2026-42944, a heap overflow vulnerability related to the processing of multiple NSID, COOKIE, and PADDING EDNS options in an unspecified product.

PgBouncer versions prior to 1.25.2 are vulnerable to an integer overflow (CVE-2026-6664), enabling unauthenticated remote attackers to trigger a denial-of-service via a crafted SCRAM authentication packet, with active exploitation reported.

CVE-2026-45498 is a denial-of-service vulnerability in Microsoft Defender that could disrupt endpoint protection capabilities, requiring timely mitigation per vendor instructions.

Plug versions 1.4.0 to 1.19.1 are vulnerable to denial-of-service (CVE-2026-8468) due to unbounded buffer accumulation in multipart header parsing, allowing an unauthenticated attacker to exhaust server memory by sending a crafted multipart/form-data request.

A vulnerability in Wireshark versions 4.4.x before 4.4.16 and 4.6.x before 4.6.6 allows a remote attacker to cause a denial of service.

BIND servers configured for TKEY-based authentication using GSS-API tokens are susceptible to excessive memory consumption upon receiving and processing crafted packets, impacting availability.

A race condition in ISC BIND can lead to a use-after-free vulnerability (CVE-2026-5947) when handling SIG(0) signed DNS messages, potentially leading to undefined behavior.

Multiple flaws in BIND 9's `named` component, specifically versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1, can be exploited by sending specially crafted DNS requests with non-`IN` CLASS or meta-classes, leading to assertion failures and potential denial-of-service.

A use-after-free vulnerability in the DNS-over-HTTPS implementation of BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1 could allow an attacker to cause a denial of service or potentially execute arbitrary code.