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Denial-of-Service

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medium advisory

Argo Workflows Webhook Interceptor Vulnerable to Unauthenticated Memory Exhaustion (CVE-2026-42294)

Argo Workflows is vulnerable to a denial-of-service (DoS) attack due to unbounded memory allocation in the Webhook Interceptor component.

Argo Workflows < 3.7.14 +2 denial-of-service argo-workflows cloud
2r 1t
medium advisory

Contact Form 7 WordPress Plugin Uncontrolled Resource Consumption Vulnerability

The Contact Form 7 WordPress plugin through version 2.6.7 is vulnerable to uncontrolled resource consumption, allowing unauthenticated attackers to exhaust server memory and crash the PHP process by supplying an arbitrarily large integer value to the REST API endpoint, leading to unbounded loop execution.

Contact Form 7 WordPress plugin wordpress resource-exhaustion denial-of-service cve-2026-25863
2r 1t 1c
critical advisory

BusyBox DHCPv6 Client Heap Buffer Overflow Vulnerability (CVE-2026-29004)

A heap buffer overflow vulnerability in BusyBox's DHCPv6 client allows network-adjacent attackers to trigger memory corruption, denial of service, or arbitrary code execution via crafted DHCPv6 responses.

BusyBox heap-overflow dhcpv6 cve-2026-29004 denial-of-service
2r 2t 1c
medium threat

Multiple Vulnerabilities in Mutt Email Client Lead to Potential DoS

A remote, anonymous attacker can exploit multiple vulnerabilities in mutt to bypass security measures and cause a denial-of-service condition.

exploited mutt denial-of-service email
2r 3t
medium advisory

libexif Vulnerability Allows Code Execution

A local attacker can exploit a vulnerability in libexif to potentially execute arbitrary code, cause a denial of service, or disclose sensitive information.

libexif vulnerability code-execution denial-of-service
2r 2t
high advisory

MariaDB Vulnerability Allows Denial of Service and Potential Code Execution

A remote, authenticated attacker can exploit a vulnerability in MariaDB to perform a denial of service attack and potentially execute arbitrary program code.

MariaDB denial-of-service code-execution
2r 2t
medium advisory

Multiple Vulnerabilities in Rapid7 Velociraptor

Multiple vulnerabilities in Rapid7 Velociraptor could allow an attacker to disclose information or cause a denial of service.

Velociraptor vulnerability denial-of-service information-disclosure
2r 3t
medium advisory

Prosody Memory Exhaustion Vulnerability (CVE-2026-43506)

Prosody versions before 0.12.6, versions 1.0.0 through 13.0.0, and before version 13.0.5 are vulnerable to a denial of service due to memory leaks from unauthenticated connections, leading to memory exhaustion.

Prosody denial-of-service memory exhaustion
2r 1t 1c
medium advisory

Libssh Denial-of-Service Vulnerability via Inefficient Regular Expression Processing (CVE-2026-0967)

CVE-2026-0967 is a denial-of-service vulnerability in libssh, stemming from inefficient regular expression processing that could lead to defense evasion and impact availability on affected systems.

libssh denial-of-service CVE-2026-0967 defense-evasion
2r 1t 1c
high advisory

GnuTLS DTLS Handshake Parsing Flaw (CVE-2026-33845)

A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read, potentially causing information disclosure or denial of service.

GnuTLS cve denial-of-service information-disclosure
2r 3t 1c
medium advisory

ABB System 800xA and Symphony Plus IEC 61850 Denial-of-Service Vulnerability

A vulnerability in ABB's IEC 61850 communication stack allows a remote attacker with access to the IEC 61850 network to cause a denial-of-service condition by sending a specially crafted packet, leading to device faults or communication driver crashes.

ABB System 800xA +5 ics denial-of-service industrial-control-system iec61850
2r 1t 1c
high advisory

Multiple Vulnerabilities in Absolute Secure Access

Multiple vulnerabilities in Absolute Secure Access could allow an attacker to escalate privileges, conduct a denial-of-service attack, and disclose sensitive information.

Secure Access vulnerability privilege-escalation denial-of-service information-disclosure
2r 3t 1c
high threat

Multiple Vulnerabilities in SonicWall SonicOS Allow Privilege Escalation and DoS

Multiple vulnerabilities in SonicWall SonicOS allow a remote attacker to escalate privileges, bypass security measures, or cause a denial-of-service condition.

exploited SonicOS sonicwall vulnerability privilege-escalation denial-of-service
2r 3t 3c
high advisory

Multiple Vulnerabilities in Red Hat Enterprise Linux Fast Datapath

A remote, anonymous attacker can exploit multiple vulnerabilities in Fast Datapath for Red Hat Enterprise Linux to perform a denial-of-service attack or disclose sensitive information.

Fast Datapath redhat vulnerability denial-of-service
2r 4t
medium advisory

libsndfile Vulnerability Allows Denial of Service

A remote, unauthenticated attacker can exploit an unpatched vulnerability in libsndfile to cause a denial of service.

libsndfile denial-of-service vulnerability
2r 1t
critical advisory

Multiple Vulnerabilities in CUPS

Multiple vulnerabilities in CUPS allow an attacker to bypass security measures, execute arbitrary code, escalate privileges, manipulate data, or cause a denial-of-service condition.

CUPS vulnerability privilege-escalation execution denial-of-service
2r 4t 1c
high advisory

Multiple Vulnerabilities in Google Chrome

Multiple vulnerabilities in Google Chrome could allow an attacker to execute arbitrary code, bypass security mechanisms, disclose and manipulate data, and cause a denial-of-service condition.

Chrome vulnerability code-execution defense-evasion information-disclosure denial-of-service
2r 5t 5c
high advisory

Multiple Vulnerabilities in Xen and Citrix Systems XenServer

Multiple vulnerabilities exist in Xen and Citrix Systems XenServer that could allow an attacker to escalate privileges, bypass security measures, modify and disclose data, or cause a denial-of-service condition.

XenServer +1 vulnerability privilege-escalation denial-of-service information-disclosure
3r 7t
medium advisory

DNSdist Multiple Vulnerabilities Leading to Denial of Service

Multiple vulnerabilities in DNSdist can be exploited by an attacker to perform a denial of service attack, impacting the availability of DNS services.

DNSdist denial-of-service vulnerability
2r 1t 1c
medium advisory

CVE-2026-32283 Unauthenticated TLS 1.3 KeyUpdate DoS Vulnerability

CVE-2026-32283 is a vulnerability in crypto/tls that allows unauthenticated TLS 1.3 KeyUpdate records, leading to persistent connection retention and a denial-of-service condition.

denial-of-service tls crypto/tls
2r 1t 1c
medium advisory

CVE-2026-28388 NULL Pointer Dereference in Delta CRL Processing

CVE-2026-28388 is a NULL Pointer Dereference vulnerability in an unspecified Microsoft product when processing a Delta CRL, potentially leading to a denial-of-service condition.

cve-2026-28388 denial-of-service certificate revocation list
2r 1c
critical advisory

Multiple Vulnerabilities in Red Hat Linux Kernel

Multiple vulnerabilities in the Red Hat Linux kernel allow for arbitrary code execution, privilege escalation, and remote denial of service.

Red Hat CodeReady Linux Builder +1 vulnerability kernel redhat execution privilege-escalation denial-of-service
2r 3t 5c
high advisory

Multiple Vulnerabilities in Exim Mail Transfer Agent

Multiple vulnerabilities in Exim versions prior to 4.99.2 allow an attacker to cause a remote denial of service, a breach of data confidentiality, and an unspecified security problem.

Exim vulnerability denial-of-service information-disclosure
3r 3t
medium advisory

Multiple Vulnerabilities in GNU libc

A remote, anonymous attacker can exploit multiple vulnerabilities in GNU libc to execute arbitrary program code, cause a denial-of-service condition, or disclose sensitive information.

libc vulnerability glibc denial-of-service code-execution
2r 3t 5c
high advisory

Red Hat Enterprise Linux LibRaw Multiple Vulnerabilities Allow Code Execution or DoS

Multiple vulnerabilities in Red Hat Enterprise Linux's LibRaw component allow a remote attacker to execute arbitrary code or cause a denial-of-service condition.

Enterprise Linux vulnerability code-execution denial-of-service linux
2r 2t
medium advisory

CoreDNS DoQ Server Denial-of-Service Vulnerability

CoreDNS' DNS-over-QUIC (DoQ) server can be driven into large goroutine and memory growth by a remote client that opens many QUIC streams and stalls after sending only 1 byte, leading to denial of service in versions before 1.14.3.

coredns dos denial-of-service vulnerability
2r 3t 1c
medium advisory

OpenClaw Unauthenticated WebSocket Denial-of-Service Vulnerability

OpenClaw before 2026.3.28 is vulnerable to a denial-of-service attack by accepting unbounded concurrent unauthenticated WebSocket upgrades, allowing attackers to exhaust server resources.

OpenClaw denial-of-service websocket cve
2r 1t 1c
medium advisory

CVE-2026-23398 ICMP NULL Pointer Dereference

CVE-2026-23398 is a vulnerability related to a NULL pointer dereference in the ICMP protocol, potentially leading to a denial-of-service condition in affected Microsoft products.

icmp denial-of-service vulnerability cve
2r 1t 1c
medium advisory

Argo Workflows Controller Denial-of-Service via Malformed Pod Annotation

A malformed `workflows.argoproj.io/pod-gc-strategy` annotation in an Argo Workflow pod can trigger an unchecked array index in the `podGCFromPod()` function, leading to a controller-wide panic and denial-of-service.

Argo Workflows argo-workflows denial-of-service kubernetes
2r 2t
high advisory

CVE-2026-31507 Double-Free Vulnerability in net/smc

CVE-2026-31507 is a double-free vulnerability in the net/smc module that occurs when the tee() function duplicates a splice pipe buffer, potentially leading to memory corruption and denial of service.

cve-2026-31507 double-free memory corruption denial of service
2r 2t 1c
high advisory

Oracle Java SE, GraalVM Networking Component Denial-of-Service Vulnerability (CVE-2026-34282)

CVE-2026-34282 is a remotely exploitable vulnerability in the Networking component of Oracle Java SE and GraalVM that allows an unauthenticated attacker to cause a complete denial of service.

CVE-2026-34282 java graalvm dos denial-of-service
2r 1t 1c
high advisory

NestJS Uncontrolled Recursion Denial-of-Service Vulnerability (CVE-2026-40879)

NestJS versions before 11.1.19 are susceptible to an uncontrolled recursion vulnerability (CVE-2026-40879) where sending many small JSON messages in a single TCP frame triggers a call stack overflow, resulting in a denial-of-service condition.

denial-of-service nestjs recursion cve-2026-40879 linux
2r 1t 1c
medium advisory

util-linux Vulnerability Allows DoS and Information Disclosure

A local attacker can exploit a vulnerability in util-linux to perform a denial of service attack and disclose sensitive information.

util-linux denial-of-service information-disclosure linux
2r 2t
critical advisory

Multiple Vulnerabilities in Red Hat Hardened Images RPMs

Remote, anonymous attackers can exploit vulnerabilities in Red Hat Hardened Images RPMs to bypass security measures, cause denial of service, disclose sensitive information, or potentially execute code.

redhat vulnerability denial-of-service information-disclosure code-execution linux
2r 7t
high advisory

Multiple Vulnerabilities in Microsoft Developer Tools

Multiple vulnerabilities in Microsoft Visual Studio, .NET Framework, .NET, PowerShell, and Visual Studio Code can be exploited by an attacker to disclose sensitive information, conduct spoofing attacks, cause a denial of service, or bypass security measures, potentially leading to arbitrary code execution.

vulnerability code-execution spoofing denial-of-service information-disclosure windows
2r 4t
medium advisory

libarchive Multiple Vulnerabilities Allow Information Disclosure and DoS

Multiple vulnerabilities in libarchive can be exploited by a remote attacker to disclose information or cause a denial-of-service condition.

vulnerability denial-of-service information-disclosure
2r 2t
high advisory

Firebird Server Denial-of-Service Vulnerability (CVE-2026-28224)

An unauthenticated attacker can trigger a denial-of-service condition on vulnerable Firebird servers by sending a specially crafted op_crypt_key_callback packet, leading to a null pointer dereference and server crash.

cve-2026-28224 denial-of-service firebird database
2r 1t 1c
critical advisory

Firebird Database Server Slice Packet Deserialization Buffer Overflow

Firebird versions before 5.0.4, 4.0.7, and 3.0.14 are vulnerable to a buffer overflow in the xdr_datum() function during slice packet deserialization, enabling unauthenticated attackers to cause a crash or potentially achieve arbitrary code execution by sending a malicious packet.

cve-2026-33337 firebird buffer-overflow denial-of-service
2r 2t 1c
high advisory

Dnsmasq Out-of-Bounds Write Vulnerability (CVE-2026-6507)

A remote attacker can exploit an out-of-bounds write vulnerability (CVE-2026-6507) in dnsmasq by sending a specially crafted BOOTREPLY packet to a server configured with the `--dhcp-split-relay` option, leading to a denial of service.

dnsmasq denial-of-service cve-2026-6507
2r 1t 1c
medium advisory

HashiCorp Vault Denial-of-Service Vulnerability (CVE-2026-5807)

HashiCorp Vault is vulnerable to a denial-of-service (DoS) condition, identified as CVE-2026-5807, where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, preventing legitimate operators from completing these workflows.

denial-of-service vault cve-2026-5807
2r 1t 1c
medium advisory

Vault kvv2 Policy Bypass Vulnerability Leading to Denial-of-Service (CVE-2026-3605)

An authenticated user with access to a kvv2 path through a policy containing a glob may be able to delete secrets they were not authorized to read or write, resulting in denial-of-service, addressed in Vault versions 2.0.0, 1.21.5, 1.20.10, and 1.19.16.

vault kvv2 denial-of-service cve-2026-3605
2r 1t 1c 1i
high advisory

Go Markdown Library Out-of-Bounds Read Vulnerability

A vulnerability in the go-markdown library exists where processing a malformed input containing a '<' character that is not followed by a '>' character with a SmartypantsRenderer can lead to an out-of-bounds read or a panic, causing a denial of service.

markdown denial-of-service go out-of-bounds read
2r 1t
high advisory

CVE-2026-33096 HTTP.sys Out-of-Bounds Read Denial-of-Service

An unauthenticated, remote attacker can exploit an out-of-bounds read vulnerability (CVE-2026-33096) in Windows HTTP.sys to cause a denial-of-service condition.

cve-2026-33096 denial-of-service windows
2r 2t 1c
high advisory

CVE-2026-32071: Windows LSASS Null Pointer Dereference DoS

CVE-2026-32071 is a null pointer dereference vulnerability in the Windows Local Security Authority Subsystem Service (LSASS), allowing an unauthorized network attacker to cause a denial-of-service condition.

cve-2026-32071 denial-of-service windows
2r 1t 1c 1i
high advisory

.NET Uncontrolled Resource Consumption Vulnerability (CVE-2026-26171)

CVE-2026-26171 is a vulnerability in .NET that allows an unauthorized attacker to perform a denial-of-service attack over a network due to uncontrolled resource consumption.

CVE-2026-26171 dotnet denial-of-service dos resource-consumption
1r 1c
high advisory

libTIFF Vulnerability Allows Code Execution and DoS

A remote, anonymous attacker can exploit a vulnerability in libTIFF to potentially execute arbitrary code or cause a denial-of-service condition.

libTIFF code execution denial of service
2r 2t
medium advisory

jq JSON Processor Hash Table Collision Denial-of-Service Vulnerability (CVE-2026-40164)

A denial-of-service vulnerability exists in jq versions prior to commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784 due to the use of a hardcoded seed in MurmurHash3, enabling attackers to craft JSON objects that trigger hash collisions and cause excessive CPU consumption.

jq denial-of-service hash-collision CVE-2026-40164 linux
2r 1t 1c
high advisory

NestJS Microservices Denial-of-Service via Recursive handleData

A denial-of-service vulnerability exists in NestJS's @nestjs/microservices package, affecting versions 11.1.18 and earlier, where an attacker can send multiple small, valid JSON messages within a single TCP frame, causing a stack overflow.

nestjs denial-of-service microservices
2r 1t
high advisory

@sveltejs/adapter-node BODY_SIZE_LIMIT Bypass Vulnerability

A vulnerability exists in @sveltejs/adapter-node where requests could bypass the `BODY_SIZE_LIMIT` on SvelteKit applications, potentially leading to denial of service.

sveltekit denial-of-service vulnerability
2r 1t 1c
medium advisory

Juniper Junos OS and Junos OS Evolved BGP Session Reset Denial of Service (CVE-2026-33797)

CVE-2026-33797 is an improper input validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved that allows an unauthenticated adjacent attacker to reset established BGP sessions via a specific BGP packet, leading to a denial of service condition.

cve-2026-33797 denial-of-service juniper bgp network
3r 2t 1c
high advisory

GNUTLS Denial of Service via Malformed ClientHello (CVE-2026-1584)

A remote, unauthenticated attacker can exploit CVE-2026-1584 in gnutls by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake, leading to a NULL pointer dereference and a denial-of-service condition.

cve-2026-1584 denial-of-service gnutls
2r 2t 1c
high advisory

React Server Components Denial of Service Vulnerability (CVE-2026-23869)

A denial of service vulnerability, CVE-2026-23869, exists in React Server Components due to excessive CPU usage triggered by specially crafted HTTP requests to Server Function endpoints, potentially leading to service disruption.

CVE-2026-23869 denial-of-service react
2r 1t 1c
medium advisory

Saleor GraphQL Resource Exhaustion Vulnerability (CVE-2026-35401)

A remote, unauthenticated attacker can cause resource exhaustion in Saleor e-commerce platforms via maliciously crafted GraphQL API requests, leading to denial of service.

cve-2026-35401 graphql resource-exhaustion denial-of-service saleor
2r 1t 1c
high advisory

Unauthenticated Denial-of-Service and Information Disclosure in Podman Desktop

Podman Desktop versions prior to 1.26.2 expose an unauthenticated HTTP server, allowing remote attackers to trigger denial-of-service conditions by exhausting resources and extract sensitive information through verbose error responses.

podman-desktop denial-of-service information-disclosure cve-2026-34045 linux windows
2r 4t 1c
high advisory

NVIDIA Triton Inference Server Denial-of-Service Vulnerability (CVE-2026-24146)

NVIDIA Triton Inference Server is vulnerable to denial of service due to insufficient input validation that, when combined with a large number of outputs, can cause a server crash.

cve-2026-24146 denial-of-service nvidia triton
2r 1t 1c
high advisory

Apache Traffic Server Vulnerabilities Leading to Denial of Service

A remote attacker can exploit multiple vulnerabilities in Apache Traffic Server to conduct a denial of service or request smuggling attack.

apache traffic server denial of service request smuggling
2r 2t
medium advisory

OpenSSH GSSAPI Vulnerability Leads to Potential Denial-of-Service

A remote, anonymous attacker can exploit a vulnerability in OpenSSH GSSAPI and Ubuntu Linux to trigger undefined behavior or a potential denial-of-service attack.

openssh gssapi denial-of-service linux
2r 1t
medium advisory

openFPGALoader Heap-Buffer-Overflow Read Vulnerability

A heap-buffer-overflow read vulnerability exists in openFPGALoader 1.1.1 and earlier, allowing out-of-bounds heap memory access via a crafted .pof file, potentially leading to denial of service or information disclosure.

heap-buffer-overflow openFPGALoader denial-of-service information-disclosure
2r 1t 1c
high advisory

Samsung Exynos Processor Denial-of-Service Vulnerability (CVE-2025-57834)

A denial-of-service vulnerability, CVE-2025-57834, exists in Samsung Exynos processors and modems due to improper input validation, potentially leading to device malfunction or service disruption.

cve-2025-57834 denial-of-service samsung exynos
2r 1t 1c 1i
high advisory

Mesop Framework WebSocket Denial-of-Service Vulnerability (CVE-2026-34824)

An unauthenticated attacker can exploit an uncontrolled resource consumption vulnerability in Mesop versions 1.2.3 to 1.2.4 by sending a rapid succession of WebSocket messages, leading to thread exhaustion and a denial-of-service condition.

denial-of-service websocket cve-2026-34824
2r 2t
high advisory

libp2p-rendezvous Unlimited Namespace Registration DoS

A vulnerable libp2p-rendezvous server can be crashed via a denial-of-service attack where an unauthenticated peer registers unlimited namespaces, leading to memory exhaustion.

libp2p rendezvous denial-of-service
2r 1t
high advisory

Amazon Athena ODBC Driver Denial of Service Vulnerability (CVE-2026-35562)

A remote, unauthenticated attacker can cause a denial of service by sending crafted input to vulnerable versions of the Amazon Athena ODBC driver, triggering excessive resource consumption during parsing operations.

CVE-2026-35562 denial-of-service amazon athena odbc driver
2r 1t 1c
medium advisory

Suricata Quadratic Complexity Issue in SMTP URL Searching (CVE-2026-31934)

Suricata versions 8.0.0 to before 8.0.4 exhibit a quadratic complexity vulnerability (CVE-2026-31934) when searching for URLs in MIME-encoded SMTP messages, leading to significant performance degradation and potential denial-of-service conditions; this is fixed in version 8.0.4.

suricata cve-2026-31934 denial-of-service performance network-security
2r 1t 1c 1i
high advisory

Wisp Multipart Parsing Vulnerability Leads to Denial of Service

A vulnerability in the multipart parsing logic of gleam-wisp allows an unauthenticated attacker to bypass request size limits and cause a denial of service by exhausting server memory or disk.

denial-of-service multipart-parsing gleam-wisp
3r 1t 1c
high advisory

Hirschmann EagleSDV Denial-of-Service Vulnerability (CVE-2022-4986)

Hirschmann EagleSDV devices are vulnerable to denial-of-service (DoS) attacks where a device crash can be triggered by establishing TLS 1.0 or TLS 1.1 connections, leading to service disruption.

denial-of-service cve-2022-4986 network-device
2r 1t 1c
high advisory

Hirschmann HiLCOS Web Interface Heap Overflow Vulnerability (CVE-2024-14033)

A heap overflow vulnerability in the HiLCOS web interface of Hirschmann Industrial IT products (CVE-2024-14033) allows unauthenticated remote attackers to cause a denial-of-service condition by sending specially crafted requests, leading to device crashes and service disruption, particularly when the Public Spot functionality is enabled.

cve-2024-14033 denial-of-service heap-overflow hilcos
2r 1t 1c
medium advisory

Suricata NULL Dereference Vulnerability

Suricata versions 8.0.0 to before 8.0.4 are vulnerable to a NULL dereference crash when using the 'tls.alpn' rule keyword, potentially leading to a denial of service.

suricata denial-of-service null-dereference
2r 2t 1c 2i
medium advisory

Suricata KRB5 Buffering Inefficiency Vulnerability (CVE-2026-31932)

An unauthenticated attacker can exploit CVE-2026-31932, a vulnerability in Suricata versions prior to 7.0.15 and 8.0.4, to cause performance degradation due to inefficient KRB5 buffering.

cve-2026-31932 suricata krb5 performance-degradation denial-of-service
2r 1t 1c 1i
high advisory

Keycloak Denial-of-Service Vulnerability via Excessive Scope Parameter (CVE-2026-4634)

An unauthenticated attacker can cause a denial-of-service on Keycloak servers by sending a crafted POST request to the OIDC token endpoint with an excessively long scope parameter, leading to high resource consumption.

cve-2026-4634 denial-of-service keycloak
2r 1t 1c
medium advisory

Corosync Integer Overflow Vulnerability (CVE-2026-35092) Leads to DoS

CVE-2026-35092 is an integer overflow vulnerability in Corosync's join message sanity validation, allowing a remote, unauthenticated attacker to send crafted UDP packets, resulting in a denial of service condition.

cve-2026-35092 denial-of-service corosync
2r 2t 1c
high advisory

gdk-pixbuf Vulnerability Allows Denial of Service and Potential Code Execution

A remote, anonymous attacker can exploit a vulnerability in gdk-pixbuf to cause a denial of service and potentially execute arbitrary code.

gdk-pixbuf denial-of-service code-execution
2r 1t
critical advisory

Multiple Vulnerabilities in libpng Allow Remote Code Execution and Denial of Service

A remote, anonymous attacker can exploit multiple vulnerabilities in libpng to execute arbitrary program code or cause a denial of service.

libpng vulnerability remote-code-execution denial-of-service
2r 2t
medium advisory

HTTP/2 Implementations Vulnerability Enables Denial of Service

A remote, anonymous attacker can exploit a vulnerability in various HTTP/2 implementations to perform a denial-of-service attack.

http/2 denial-of-service webserver
2r 1t
critical advisory

Red Hat Enterprise Linux libxslt Vulnerability Allows DoS and Code Execution

A local attacker can exploit a vulnerability in libxslt on Red Hat Enterprise Linux to cause a denial of service or execute arbitrary program code.

libxslt rhel vulnerability code-execution denial-of-service linux
2r 2t
high advisory

Django Multiple Vulnerabilities Leading to SQL Injection, Information Disclosure, and DoS

A remote, authenticated attacker can exploit multiple vulnerabilities in Django to perform SQL injections, disclose confidential information, or cause a denial-of-service condition.

django sql-injection information-disclosure denial-of-service web-application webserver
2r 2t
high advisory

NVIDIA Jetson JetPack Insecure Default Initialization Vulnerability (CVE-2026-24148)

CVE-2026-24148 is a vulnerability in NVIDIA Jetson for JetPack's system initialization logic, where an unprivileged attacker can cause the initialization of a resource with an insecure default, potentially leading to information disclosure, data tampering, and denial of service.

cve-2026-24148 nvidia-jetson insecure-default information-disclosure data-tampering denial-of-service
2r 2t 1c 1i
high advisory

GNU C Library iconv() Function Assertion Failure (CVE-2026-4046)

A vulnerability in the iconv() function of the GNU C Library (versions 2.43 and earlier) can cause a crash due to an assertion failure when handling IBM1390 or IBM1399 character sets, potentially leading to remote application denial-of-service.

glibc iconv denial-of-service crash cve-2026-4046
2r 1t
high advisory

libp2p-gossipsub Remote Denial of Service via Integer Overflow

A remote, unauthenticated attacker can crash applications using libp2p-gossipsub versions prior to 0.49.4 by sending a crafted PRUNE control message with a near-maximum backoff value, causing an arithmetic overflow during heartbeat processing.

libp2p gossipsub denial-of-service integer overflow rust
2r 1t
critical advisory

Multiple Vulnerabilities in Fleet

Multiple vulnerabilities in Fleet allow an attacker to perform SQL injection, denial of service, bypass security measures, disclose information, and execute arbitrary program code with administrator privileges.

fleet vulnerability sql-injection denial-of-service
2r 8t
high advisory

Internet Systems Consortium BIND Vulnerabilities Leading to Denial of Service

Multiple vulnerabilities in Internet Systems Consortium BIND can be exploited by a remote attacker to conduct a denial of service attack or bypass security measures.

dns denial-of-service bind
2r 1t
critical advisory

Multiple Vulnerabilities in NGINX and NGINX Plus

Multiple vulnerabilities in NGINX Plus and NGINX can be exploited by an attacker to perform a denial of service attack, manipulate data, bypass security measures, and potentially execute arbitrary program code, leading to significant impact.

nginx vulnerability denial-of-service code-execution webserver linux
2r 1t
high advisory

Tinyproxy HTTP Chunked Encoding Integer Overflow Denial of Service

An integer overflow vulnerability in Tinyproxy's HTTP chunked transfer encoding parser (versions <= 1.11.3) allows an unauthenticated remote attacker to cause a denial of service by sending a crafted chunk size that bypasses validation, leading to resource exhaustion.

tinyproxy denial-of-service integer-overflow cve-2026-3945
2r 1t
high advisory

XPath Boolean Expression DoS Vulnerability

A vulnerability in the antchfx/xpath package allows for denial of service via CPU exhaustion by exploiting boolean expressions that evaluate to true, leading to an infinite loop.

xpath denial-of-service cve-2026-32287
2r 1t
high advisory

MinIO SSE Metadata Injection via Replication Headers Leads to Data Unreadability

A vulnerability in MinIO allows authenticated users with `s3:PutObject` permission to inject internal server-side encryption metadata into objects via crafted replication headers, leading to permanent data unreadability.

minio s3 metadata-injection denial-of-service
2r 1t
high advisory

EVerest Out-of-Bounds Access Vulnerability (CVE-2026-26008)

EVerest, an EV charging software stack, has an out-of-bounds access vulnerability in versions prior to 2026.02.0, which can lead to remote crash or memory corruption when the CSMS sends UpdateAllowedEnergyTransferModes over the network.

cve ev-charging out-of-bounds denial-of-service
2r 2t 2i
high advisory

CVE-2026-4926: Regular Expression Denial of Service

CVE-2026-4926 describes a denial-of-service vulnerability due to an inefficient regular expression complexity issue when handling multiple sequential optional groups, leading to exponential growth and resource exhaustion.

denial-of-service regex cve
2r 2t
medium advisory

ManageSieve AUTHENTICATE Command Denial-of-Service Vulnerability (CVE-2025-59032)

CVE-2025-59032 describes a vulnerability in ManageSieve's AUTHENTICATE command, where using a literal as a SASL initial response can crash the ManageSieve service, leading to a denial-of-service condition.

denial-of-service managesieve cve-2025-59032 mail-service
2r 1t 1i
high advisory

C2C CI utils Vulnerable to DoS via pyasn Dependency (CVE-2026-30922)

The c2cciutils package is vulnerable to denial of service due to an uncontrolled recursion vulnerability (CWE-674) in the pyasn dependency, specifically versions before 1.1.65.

denial-of-service pyasn c2cciutils dependency-vulnerability
2r 1t
high advisory

Netty HTTP/2 CONTINUATION Frame Flood Denial of Service

A denial of service vulnerability exists in Netty's HTTP/2 server implementation where an unauthenticated user can exhaust server CPU resources by sending a flood of CONTINUATION frames with zero-byte payloads, bypassing size-based mitigations and leading to service unavailability with minimal bandwidth usage; affected versions include netty-codec-http2 < 4.1.132.Final and netty-codec-http2 versions >= 4.2.0.Alpha1 and < 4.2.10.Final.

denial-of-service http2 netty cve-2026-33871
1r
high advisory

CPCI85 and SICORE Base System XML Out-of-Bounds Write Vulnerability

An unauthenticated attacker can exploit an out-of-bounds write vulnerability in CPCI85 Central Processing/Communication and SICORE Base System by sending a malicious XML request, potentially causing a service crash leading to a denial-of-service condition.

cve-2026-27664 denial-of-service xml
2r 1t
high advisory

NATS Server WebSocket Frame Length Overflow Denial of Service

A vulnerability in NATS server allows a remote, unauthenticated attacker to cause a denial of service by sending a crafted WebSocket frame, leading to a server crash due to missing validation on WebSocket frame length.

nats websocket denial-of-service CVE-2026-27889 server-crash
2r 1t
medium advisory

GitLab GraphQL Denial of Service Vulnerability (CVE-2026-3988)

CVE-2026-3988 is a denial of service vulnerability in GitLab CE/EE allowing unauthenticated users to crash instances by sending malformed GraphQL requests, affecting versions 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1.

denial-of-service graphql gitlab cve-2026-3988
2r 1t
high advisory

Picomatch ReDoS Vulnerability via Extglob Quantifiers

Picomatch is vulnerable to Regular Expression Denial of Service (ReDoS) when processing crafted extglob patterns with quantifiers, leading to excessive CPU consumption and denial of service.

picomatch ReDoS denial-of-service extglob
2r 1t
critical advisory

LiquidJS replace_first Filter Exponential Memory Amplification DoS

The `replace_first` filter in LiquidJS is vulnerable to exponential memory amplification due to its use of JavaScript's `String.prototype.replace()` and mishandling of the `$&` backreference pattern, allowing attackers to bypass the `memoryLimit` and cause denial of service.

liquidjs denial-of-service memory-amplification
2r 1t
high advisory

Salvo Web Framework Denial of Service Vulnerability (CVE-2026-33241)

The Salvo web framework before version 0.89.3 is vulnerable to denial of service due to unbounded memory allocation when parsing form data, enabling attackers to crash services by sending large payloads.

denial-of-service web-framework rust
2r 1t
critical advisory

Multiple Vulnerabilities in GnuPG and Gpg4win Allow for Arbitrary Code Execution and Denial of Service

Multiple vulnerabilities exist in GnuPG and Gpg4win that could allow a remote attacker to execute arbitrary code or cause a denial-of-service condition.

gnupg gpg4win vulnerability code-execution denial-of-service
2r 2t
high advisory

Apache CXF Vulnerability Allows DoS and Information Disclosure

An anonymous remote attacker can exploit a vulnerability in Apache CXF to perform a denial of service attack and disclose sensitive information.

apache-cxf denial-of-service information-disclosure webserver
2r 2t
critical advisory

Multiple Vulnerabilities in Redis

Multiple vulnerabilities in Redis allow an attacker to execute arbitrary program code and perform a denial-of-service attack.

redis vulnerability code execution denial of service
2r 2t
critical advisory

Multiple Vulnerabilities in Red Hat Developer Hub

Multiple vulnerabilities in Red Hat Developer Hub allow a remote attacker to perform denial of service, execute arbitrary code, bypass security measures, and manipulate data.

redhat developer hub vulnerability denial of service code execution
2r 8t
high advisory

Red Hat JBoss Enterprise Application Platform Multiple Vulnerabilities

An anonymous remote attacker can exploit multiple vulnerabilities in Red Hat JBoss Enterprise Application Platform to cause a denial-of-service condition, manipulate data, and conduct further attacks such as cache poisoning and session hijacking.

jboss undertow denial-of-service cache-poisoning session-hijacking webserver
2r 3t
high advisory

Multiple Vulnerabilities in Grub Bootloader

Multiple vulnerabilities in the Grub bootloader allow attackers to execute arbitrary code and cause denial-of-service conditions.

bootloader grub2 vulnerability denial-of-service arbitrary-code-execution
2r 2t
critical advisory

Multiple Vulnerabilities in Apache Tomcat Allow for Remote Code Execution and Data Manipulation

Multiple vulnerabilities in Apache Tomcat can be exploited by a remote, authenticated or anonymous attacker to execute arbitrary code, bypass security measures, manipulate data, and cause a denial of service.

apache-tomcat vulnerability remote-code-execution data-manipulation denial-of-service
2r 3t
critical advisory

Red Hat Enterprise Linux Vulnerability Leads to Code Execution and Potential DoS

A remote, authenticated attacker can exploit a vulnerability in Red Hat Enterprise Linux (specifically 389-ds-base) to achieve arbitrary code execution and potentially cause a denial of service.

rhel code-execution denial-of-service linux
2r 3t
high advisory

Multiple Vulnerabilities in Vim Allow Local Code Execution and DoS

Multiple vulnerabilities in vim allow a local attacker to execute arbitrary code, cause a denial-of-service condition, or manipulate data.

vim vulnerability code execution denial of service
2r 2t
critical advisory

CODESYS Multiple Vulnerabilities Allow Arbitrary Code Execution and DoS

Multiple vulnerabilities in CODESYS allow a remote attacker to execute arbitrary program code and conduct a denial-of-service attack.

codesys vulnerability arbitrary-code-execution denial-of-service ics
2r 2t
critical advisory

Multiple Vulnerabilities in GStreamer

Multiple vulnerabilities in GStreamer allow a remote, anonymous attacker to cause a denial-of-service condition, memory corruption, and potentially execute arbitrary code.

gstreamer vulnerability denial-of-service memory-corruption code-execution
3r 2t
high advisory

Free5GC AMF Denial-of-Service Vulnerability (CVE-2026-30653)

A remote attacker can exploit CVE-2026-30653 in Free5GC v4.2.0 and earlier by sending crafted requests to the AMF component's HandleAuthenticationFailure function, leading to a denial-of-service condition.

free5gc denial-of-service cve-2026-30653 amf
2r 2t
high advisory

NGINX ngx_mail_auth_http_module Denial-of-Service Vulnerability (CVE-2026-27651)

NGINX Plus and NGINX Open Source are vulnerable to a denial-of-service condition (CVE-2026-27651) when the ngx_mail_auth_http_module is enabled, CRAM-MD5 or APOP authentication is used, and the authentication server permits retry via the Auth-Wait response header, leading to worker process termination.

nginx denial-of-service mail proxy cve-2026-27651
2r 2t 1i
medium advisory

WebRTC Signaling Denial-of-Service Vulnerability (CVE-2026-4704)

CVE-2026-4704 is a denial-of-service vulnerability in the WebRTC Signaling component affecting Firefox, Firefox ESR, and Thunderbird, potentially disrupting service availability.

webrtc denial-of-service firefox thunderbird
2r 1t
medium advisory

Mozilla Firefox and Thunderbird WebCodecs Boundary Condition Vulnerability (CVE-2026-4695)

An incorrect boundary condition in the Audio/Video Web Codecs component in Mozilla Firefox and Thunderbird (CVE-2026-4695) could lead to a denial-of-service (DoS) condition due to a vulnerability that affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

cve-2026-4695 firefox thunderbird webcodecs denial-of-service
2r 1t
medium advisory

Mozilla Firefox and Thunderbird Web Codecs Denial-of-Service Vulnerability (CVE-2026-4697)

CVE-2026-4697 is a denial-of-service vulnerability due to incorrect boundary conditions in the Audio/Video Web Codecs component of Mozilla Firefox and Thunderbird, potentially leading to application crashes.

cve-2026-4697 denial-of-service mozilla firefox thunderbird
2r 1t 1i
medium advisory

Mozilla Firefox and Thunderbird Audio/Video Playback Denial-of-Service Vulnerability (CVE-2026-4693)

CVE-2026-4693 is a vulnerability due to incorrect boundary conditions in the Audio/Video: Playback component of Mozilla Firefox and Thunderbird, potentially leading to a denial-of-service condition.

cve denial-of-service firefox thunderbird
2r 1t 1i
medium advisory

Mozilla Firefox Canvas2D Improper Boundary Condition Vulnerability (CVE-2026-4685)

An improper boundary condition vulnerability in the Canvas2D component of Mozilla Firefox, Firefox ESR, and Thunderbird (CVE-2026-4685) could allow for a denial-of-service condition.

cve-2026-4685 firefox thunderbird denial-of-service canvas2d
2r 2t
high advisory

strongSwan EAP-TTLS AVP Integer Underflow Vulnerability (CVE-2026-25075)

An integer underflow vulnerability in strongSwan's EAP-TTLS AVP parser allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication, leading to excessive memory allocation or a NULL pointer dereference.

denial-of-service integer-underflow strongSwan CVE-2026-25075
2r 1t
medium advisory

OwnTone Server DAAP Request NULL Pointer Dereference Denial-of-Service (CVE-2026-26828)

A NULL pointer dereference vulnerability in the daap_reply_playlists function of owntone-server allows attackers to cause a Denial of Service (DoS) by sending a crafted DAAP request.

cve-2026-26828 denial-of-service owntone-server
2r 2t 1i
critical advisory

Multiple Vulnerabilities in libpng Allow Remote Code Execution and Denial of Service

Multiple vulnerabilities in libpng allow a remote, anonymous attacker to perform denial of service attacks and execute arbitrary code.

libpng vulnerability denial-of-service code execution
2r 2t
high advisory

Multiple Vulnerabilities in FreeRDP Allow for DoS and Potential Code Execution

A remote, anonymous attacker can exploit multiple vulnerabilities in FreeRDP to cause a denial of service or potentially execute arbitrary program code.

freerdp rdp vulnerability denial-of-service code-execution
2r 2t
medium advisory

Apache Commons FileUpload Denial of Service Vulnerability

A remote, anonymous attacker can exploit a vulnerability in Apache Commons FileUpload to perform a denial of service attack.

apache commons-fileupload denial-of-service vulnerability
2r 1t
medium advisory

Android-ImageMagick7 Memory Leak Vulnerability (CVE-2026-33852)

A missing release of memory vulnerability (CVE-2026-33852) in MolotovCherry Android-ImageMagick7 before version 7.1.2-11 can lead to a denial-of-service condition due to memory exhaustion.

cve memory leak denial of service android
2r 1t 1i
high advisory

Schneider Electric Modicon PLC Denial-of-Service Vulnerability

Team82 disclosed vulnerabilities in Schneider Electric Modicon Controllers M241, M251, and M262 PLC lines, which can allow an attacker to cause a denial-of-service condition and affect controller availability.

plc denial-of-service industrial-control-system modicon
2r 1t 2i
high advisory

cgltf Integer Overflow Vulnerability in Sparse Accessor Validation

cgltf version 1.15 and prior contain an integer overflow vulnerability in the cgltf_validate() function when validating sparse accessors, allowing attackers to trigger out-of-bounds reads via crafted glTF/GLB files, leading to denial of service and potential memory disclosure.

integer-overflow denial-of-service memory-disclosure glTF cgltf
2r 2t
high advisory

Xenstore Crash Vulnerability via Malicious Node Path Access (CVE-2026-23555)

A guest VM issuing a Xenstore command with the node path '/local/domain/' can crash xenstored (CVE-2026-23555), or, if NDEBUG is defined, cause denial of service by consuming all CPU resources.

xen xenstore denial-of-service CVE-2026-23555 hypervisor vulnerability linux
2r 1t
high advisory

Jsrsasign Infinite Loop Vulnerability (CVE-2026-4598)

Jsrsasign versions before 11.1.1 are vulnerable to an infinite loop via the bnModInverse function when processing zero or negative inputs, potentially leading to a denial of service.

denial-of-service javascript node.js jsrsasign vulnerability
2r 1t
critical advisory

Critical Vulnerabilities in Quest KACE SMA Allow System Takeover

Multiple critical vulnerabilities in Quest KACE Systems Management Appliance (SMA), including authentication bypass and 2FA bypass, allow unauthenticated attackers to achieve system takeover and cause denial of service; active exploitation is reported.

quest-kace vulnerability authentication-bypass 2fa-bypass denial-of-service sma
2r 4t
high advisory

Memory Exhaustion Vulnerability in Widely Used Python Library

A memory exhaustion vulnerability (CVE-2026-33155) exists in a widely used Python library, affecting services like SageMaker, DataHub, and acryl-datahub due to an incomplete patch for CVE-2025-58367, requiring pinning to version 8.6.2.

memory-exhaustion vulnerability denial-of-service python supply-chain
2r 1t
high advisory

Yokogawa CENTUM VP R6 and R7 Vulnerabilities Lead to Potential Denial of Service and Arbitrary Code Execution

Multiple vulnerabilities in Yokogawa CENTUM VP R6 and R7 Vnet/IP Interface Package can be exploited by sending maliciously crafted packets, leading to denial-of-service or arbitrary code execution.

ics denial-of-service out-of-bounds write
2r 3t
critical advisory

EV2GO Charging Station Vulnerabilities Allow Impersonation and Denial of Service

Multiple vulnerabilities in EV2GO charging stations, including missing authentication and session management flaws, could allow attackers to impersonate stations, hijack sessions, and cause denial-of-service conditions.

ev2go charging-station vulnerability denial-of-service
2r 3t 1i
critical advisory

Multiple Vulnerabilities in Chargemap Charging Stations

Unauthenticated attackers can exploit multiple vulnerabilities in Chargemap's charging stations, including missing authentication, improper authentication attempt restrictions, insufficient session expiration, and unprotected credentials, potentially leading to unauthorized control and denial-of-service.

ics ot vulnerability denial-of-service
2r 5t 1i
medium advisory

go-zserio Unbounded Memory Allocation Vulnerability

go-zserio versions prior to 0.9.1 are vulnerable to unbounded memory allocation when deserializing data, potentially leading to denial of service.

go-zserio memory-allocation denial-of-service
2r 1t
medium advisory

russh Keyboard-Interactive Authentication Denial-of-Service

A denial-of-service vulnerability exists in the russh crate, where a malicious client can crash any russh-based server implementing keyboard-interactive authentication by sending a crafted SSH_MSG_USERAUTH_INFO_RESPONSE message with a large response count, leading to excessive memory allocation and an out-of-memory crash without requiring any credentials.

russh denial-of-service keyboard-interactive
2r 2t
critical advisory

GStreamer Multiple Vulnerabilities Allow for Remote Code Execution and Denial of Service

Multiple vulnerabilities in GStreamer allow a remote, anonymous attacker to cause a denial-of-service condition or execute arbitrary code.

GStreamer vulnerability denial-of-service remote-code-execution
2r 2t 5c
medium advisory

Zserio Runtime Unbounded Memory Allocation Vulnerability

A crafted payload can force memory allocations of up to 16 GB, leading to a denial-of-service condition in applications using the Zserio serialization framework, including those within the automotive Navigation Data Standard (NDS).

Navigation Data Standard +1 zserio denial-of-service memory-allocation nds
2r 1t
medium advisory

Kyverno Controller Denial of Service via forEach Mutation Panic

An unchecked type assertion in Kyverno versions v1.13.0 to v1.17.1 allows a user with permission to create a Policy or ClusterPolicy to crash the cluster-wide background controller into a persistent CrashLoopBackOff, leading to a denial of service, by crafting a malicious policy that triggers a nil pointer dereference in the forEach mutation handler.

Kyverno denial-of-service kubernetes policy-engine
2r 2t
high advisory

i18next-http-middleware Prototype Pollution and Path Traversal Vulnerability

Versions of i18next-http-middleware before 3.9.3 are vulnerable to prototype pollution, path traversal, and server-side request forgery (SSRF) due to improper validation of user-controlled language and namespace parameters, potentially leading to denial of service or remote code execution.

i18next-http-middleware prototype-pollution path-traversal ssrf denial-of-service i18next
2r 2t
medium advisory

Nimiq Node Panic due to Invalid BLS Key

An unauthenticated peer can crash a Nimiq node by sending a malformed election macro block containing an invalid BLS voting key, leading to a denial of service.

nimiq-primitives denial-of-service nimiq bls
2r 3t
medium advisory

PhpSpreadsheet XML Reader Denial of Service via Unbounded Row Index

PhpSpreadsheet is vulnerable to a denial-of-service attack by crafting a SpreadsheetML XML file with an excessively large row index, which exhausts server CPU resources due to unbounded iteration.

PhpSpreadsheet denial-of-service xml
2r 1t
medium advisory

rustls-webpki Denial-of-Service Vulnerability via Malformed CRL BIT STRING

A denial-of-service vulnerability exists in rustls-webpki versions prior to 0.103.13 and between 0.104.0-alpha.1 and 0.104.0-alpha.7 due to a panic in `bit_string_flags()` when processing a malformed CRL BIT STRING, triggered when CRL checking is enabled and an attacker provides a crafted CRL.

rustls-webpki denial-of-service crl
2r 1t
medium advisory

PhpSpreadsheet CPU Denial of Service via Unbounded Row Number

A vulnerability in PhpSpreadsheet exists where a crafted XLSX file containing a large row number can cause excessive CPU consumption due to unbounded loop iterations, leading to a denial of service.

PhpSpreadsheet denial-of-service xlsx php
2r 1t
medium advisory

liquidjs Denial of Service via Circular Block Reference

A vulnerability in liquidjs versions prior to 10.25.7 allows for denial of service due to a circular block reference in the layout, causing an infinite recursive loop that exhausts memory and crashes the Node.js process.

liquidjs denial-of-service template-injection
2r 1t
medium advisory

i18next-http-middleware HTTP Response Splitting and DoS Vulnerability

i18next-http-middleware versions before 3.9.3 are vulnerable to HTTP response splitting and denial-of-service attacks due to unsanitized Content-Language headers, potentially leading to session fixation, cache poisoning, reflected XSS, or complete service disruption depending on the Node.js version.

i18next-http-middleware crlf-injection http-response-splitting denial-of-service i18next
2r 1t
medium advisory

GoBGP Remote Denial of Service via Malformed BGP UPDATE Message

A remote Denial of Service (DoS) vulnerability exists in GoBGP version 4.2.0 and earlier, where a malformed BGP UPDATE message can trigger a runtime error (index out of range panic), crashing the GoBGP process. This occurs during the processing of 4-byte AS attributes when the message structure causes an internal slice index shift that is not properly handled. A single malicious peer or a malformed route propagated through a transit provider can consistently crash the BGP daemon, leading to a complete loss of routing capabilities.

GoBGP denial of service bgp network
2r 1t
medium advisory

Denial of Service Vulnerability in marked via Infinite Recursion

A denial of service vulnerability exists in marked version 18.0.0 due to infinite recursion when processing a specific 3-byte sequence (tab, vertical tab, and newline), leading to unbounded memory allocation and application crash.

marked denial-of-service javascript vulnerability
2r 1t
medium advisory

CVE-2026-28390 NULL Dereference in CMS KeyTransportRecipientInfo Processing

CVE-2026-28390 is a vulnerability related to a possible NULL pointer dereference when processing CMS KeyTransportRecipientInfo, potentially leading to a denial-of-service condition.

vulnerability denial-of-service
2r 1c
medium advisory

n8n Unauthenticated Denial of Service via MCP Client Registration

n8n is vulnerable to an unauthenticated denial of service (DoS) attack due to missing resource controls in the MCP OAuth client registration endpoint, allowing an attacker to exhaust server memory by sending large registration payloads, leading to service unavailability; this is resolved in versions 1.123.32, 2.17.4, and 2.18.1 and tracked as CVE-2026-42236.

n8n denial-of-service vulnerability
2r 1t