Java

The Netty SpdySessionHandler component is vulnerable to a denial of service attack via uncontrolled concurrent stream allocation, potentially exhausting JVM heap and direct memory.

An unauthenticated remote attacker can trigger a denial of service in Red Hat RESTEasy by submitting a crafted image that causes excessive memory allocation within the JVM via the IIOImageProvider component.

A logic error in the RabbitMQ Java client's frame size negotiation allows a malicious server to trigger a massive memory allocation and service crash by exploiting an integer comparison flaw in frame handling.

AsyncHttpClient is vulnerable to a decompression bomb denial of service attack due to unbounded automatic HTTP/1.1 response decompression, potentially leading to heap exhaustion.

A vulnerability in quarkus-websockets-next allows a remote attacker to cause a Denial of Service via heap exhaustion by streaming WebSocket messages faster than the application can process them.

Oracle GraalVM contains multiple vulnerabilities including CVE-2024-21226, CVE-2024-21227, and CVE-2024-21228, which allow remote unauthenticated attackers to compromise system confidentiality, integrity, and availability.

An XML external entity injection vulnerability (CVE-2026-12666) in IBM MQ Classes for Java allows authenticated attackers to perform denial-of-service attacks or disclose sensitive host information by manipulating MQRFH2 headers.

The zstd-jni library versions prior to 1.5.7-14 are vulnerable to an out-of-bounds memory read in the ZstdDictCompress constructor, allowing local or remote attackers to read native heap memory into a compression dictionary.

Jolokia JSR-160 proxy contains an insufficient validation flaw, identified as CVE-2026-84218, which allows attackers to bypass denylists and trigger JNDI lookups leading to SSRF or remote code execution.

A vulnerability in Apache Commons Configuration allows a remote, unauthenticated attacker to trigger a denial of service condition through improper variable interpolation handling.

The Qute template engine in Quarkus fails to properly restrict access to sensitive Java internals, allowing an attacker to achieve remote code execution via template injection.

A vulnerability in the Undertow web server used in JBoss EAP and WildFly allows remote attackers to trigger denial of service through WebSocket resource exhaustion due to unconfigurable limits.

PowSyBl Core is vulnerable to OS command and argument injection (CVE-2026-55673) via unsanitized shell concatenation in its local command execution components, allowing unauthenticated remote command execution.

An algorithmic complexity vulnerability in the nltk PorterStemmer module allows unauthenticated attackers to cause high CPU usage via specially crafted inputs.

The RabbitMQ Java client library is vulnerable to arbitrary class loading and static initializer execution via unvalidated input in the JSON-RPC ProcedureDescription, which can lead to remote code execution.

The docx4j-core library is vulnerable to a stack exhaustion denial-of-service attack due to missing cycle detection in the OpenXML style resolution process.

CVE-2026-15560 allows unauthenticated remote code execution in Red Hat JBoss EAP environments configured with the -secmgr flag due to insecure object unmarshalling.

Multiple vulnerabilities in the Bouncy Castle for Java FIPS library allow remote, anonymous attackers to trigger a denial-of-service condition.

A vulnerability in the Object Request Broker (ORB) component of IBM SDK for Java allows an unauthenticated attacker to trigger remote code execution via arbitrary class instantiation.

An XML External Entity (XXE) injection vulnerability (CVE-2026-54078, CWE-611) in the veraPDF-validation library's `validation-model` module allows a remote attacker to read arbitrary files from the server's file system and perform Server-Side Request Forgery by submitting a crafted PDF containing a malicious rich-text entry, which is then parsed by an insecure `DocumentBuilderFactory`.

A vulnerability, CVE-2026-43910, in Appium's java-client allows a malicious Appium server to redirect all subsequent session traffic to an arbitrary internal endpoint by injecting unvalidated `directConnectHost` and `directConnectPort` parameters when `directConnect(true)` is enabled, potentially leading to session traffic interception, network pivoting, and cloud credential theft.

Multiple vulnerabilities in OmniFaces versions prior to 1.14.3, 2.7.33, 3.14.23, 4.7.12, and 5.4.2 allow attackers to exploit forged combined-resource IDs leading to server-side request forgery (SSRF)-like behavior or information disclosure, achieve client-side arbitrary code execution via cross-site scripting (XSS) in `o:hashParam`, bypass session authentication for push channels resulting in unauthorized message interception, and cause denial-of-service (DoS) via unbounded caches.

Five independent HTTP/1.1 conformance laxities in Blaze's Java parser cause request-boundary disagreement with a stricter intermediary proxy, enabling front-end ACL/authentication bypass, response-queue poisoning on pooled backend connections, and cache poisoning in affected `http4s-blaze-server` and `blaze-http` components.

An unauthenticated remote code execution vulnerability, tracked as CVE-2026-62379, affects OpenAM up to and including version 16.1.1, allowing attackers to achieve full server compromise by sending a crafted XML element to the `/authservice` endpoint that names and instantiates an arbitrary Java class without validation on default configurations.

A critical remote code execution (RCE) vulnerability, CVE-2026-62263, exists in OpenAM's WebAuthn authenticator deserialization, allowing an unauthenticated attacker to bypass an `ObjectInputFilter` and execute arbitrary code by crafting a malicious serialized stream before authentication.

A vulnerability, CVE-2026-10050, in Eclipse Jetty's HTTP client `DigestAuthentication.apply()` method allows an authentication bypass by an attacker who can exploit the lossy ISO-8859-1 character encoding to forge Digest authentication response hashes for users with non-Latin-1 passwords.

A misconfiguration vulnerability (CVE-2026-56817) in Netty's XmlDecoder component allows attackers to send XML with DOCTYPE declarations to an unconfigured XML factory, potentially leading to XML External Entity (XXE) injection if the underlying Aalto XML parser resolves external entities, impacting Netty applications using `netty-codec-xml` versions 4.1.0.Final through 4.1.135.Final and 4.2.0.Final through 4.2.15.Final.

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 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`.

An easily exploitable vulnerability, CVE-2026-47063, in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition allows unauthenticated attackers with network access to achieve unauthorized creation, deletion, or modification of critical data via API exploitation, impacting data integrity.

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.

A vulnerability in ArcadeDB's ScriptTriggerExecutor allows users with UPDATE_SCHEMA privileges to achieve OS Remote Code Execution (RCE) due to a permissive allow-list for trigger scripts, enabling direct calls to `java.lang.Runtime.exec()` when a malicious trigger script is created and fired.

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.

QuimaRAT is a newly identified Java-based Remote Access Trojan (RAT) distributed via a Malware-as-a-Service (MaaS) model, capable of targeting Windows, Linux, and macOS systems with a modular architecture for remote access and dynamic functionality expansion.

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.

An unauthenticated attacker can exploit a cross-site scripting (XSS) vulnerability (CVE-2026-44752) in SAP NetWeaver Application Server Java by injecting malicious JavaScript through crafted URLs, leading to client-side script execution, access to sensitive session information, and modification of non-sensitive data, resulting in high confidentiality impact and low integrity impact.

This brief describes the detection of suspicious `javaw.exe` execution on Windows systems by adversaries leveraging recently dropped or modified Java payloads from user-writable directories (e.g., `Users`, `ProgramData`, `Windows\Temp`) to establish command and control via immediate DNS lookups, thereby evading application control mechanisms.

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.

A critical vulnerability, CVE-2026-44179, exists in XWiki Pro Macros versions before 1.14.5, allowing remote code execution for any user with page editing rights due to improper escaping of page titles and content processed by the excerpt-include macro, leading to XWiki syntax injection and full compromise of the XWiki installation.

A critical pre-authentication remote code execution (RCE) vulnerability, CVE-2026-46495, exists in OpenDJ Community Edition affecting versions up to 5.1.0, where a deserialization of untrusted data issue in the JMX RMI connector allows unauthenticated attackers with TCP reachability to the JMX listener to execute arbitrary Java objects, potentially leading to full system compromise.

An unauthenticated remote code execution vulnerability (CVE-2026-58138) in Orkes Conductor allows attackers to execute arbitrary OS commands by submitting malicious JavaScript or Python expressions within inline workflow definitions to the workflow API endpoint before authentication, leveraging unsandboxed GraalVM evaluators through specific task types to invoke system commands via Java reflection or direct subprocess calls.

Multiple vulnerabilities have been discovered in Apereo Java CAS client versions prior to 4.1.1, potentially leading to data confidentiality breaches as detailed in the casc-jwt-vuln security bulletin.

The `pullArtifact` methods in `Registry` and `OCILayout` use the `org.opencontainers.image.title` annotation from a pulled manifest as a filename, resolving it against the caller supplied output directory without normalization or a containment check, allowing a manifest publisher to write blobs outside of the intended target directory.

CVE-2026-8759 is a remote code execution vulnerability in xiandafu beetl up to 3.20.2, stemming from improper neutralization of special elements within the SpELFunction component, enabling remote exploitation.

A remote attacker, either anonymous or authenticated, can exploit multiple vulnerabilities in Oracle Java SE to compromise confidentiality, integrity, and availability.

The deprecated fabric-sdk-java client SDK is vulnerable to Java deserialization RCE due to the use of ObjectInputStream.readObject() without an ObjectInputFilter in Channel.java, allowing remote code execution if an attacker can supply crafted serialized Channel bytes to the client application.

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.

This rule detects a potential JAVA/JNDI exploitation attempt by identifying outbound network connections by JAVA to LDAP, RMI, or DNS standard ports followed by suspicious JAVA child processes such as shell interpreters and scripting languages, which may indicate a Java Naming and Directory Interface (JNDI) injection vulnerability exploitation attempt.

A remote, anonymous attacker can exploit a vulnerability in Logback to perform a denial-of-service (DoS) attack.

A remote code execution vulnerability exists in dd-trace-java versions prior to 1.60.3 due to unsafe deserialization in the RMI instrumentation, potentially allowing attackers with network access to a JMX or RMI port to execute arbitrary code on affected systems.

The execution of a Linux shell process from a Java JAR application following an incoming network connection may indicate reverse shell activity.