Allocation of Resources Without Limits or Throttling

Overview org.apache.activemq:activemq-client is a high performance Apache 2.0 licensed Message Broker and JMS 1.1 implementation. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in NIO SSL transport processing. An attacker can cause the...

Allocation of Resources Without Limits or Throttling

Overview org.apache.activemq:activemq-all is a package that puts together an ActiveMQ jar bundle. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in NIO SSL transport processing. An attacker can cause the broker to exhaust all available...

Apache ActiveMQ: Denial of Service via Out of Memory vulnerability

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

GHSA-5568-6QCG-G7FX Apache ActiveMQ: Denial of Service via Out of Memory vulnerability

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

CVE-2026-39304

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

CVE-2026-39304 Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Incorrect handling of TLSv1.3 KeyUpdate can be exploited to cause DoS via OOM

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

CVE-2026-39304

Summary: CVE-2026-39304 describes a DoS via Out-of-Memory in Apache ActiveMQ components caused by TLSv1.3 KeyUpdate handling in NIO SSL transports. The broker and clients are affected for multiple versions prior to 6.2.4 or 5.19.4, with the recommended fixes being 6.2.4 or 5.19.5. The issue arise...

CVE-2026-39304 Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Incorrect handling of TLSv1.3 KeyUpdate can be exploited to cause DoS via OOM

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

CVE-2026-39304 Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Incorrect handling of TLSv1.3 KeyUpdate can be exploited to cause DoS via OOM

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

PT-2026-31892

Name of the Vulnerable Software and Affected Versions Apache ActiveMQ Client versions before 5.19.4, from 6.0.0 through 6.2.3 Apache ActiveMQ Broker versions before 5.19.4, from 6.0.0 through 6.2.3 Apache ActiveMQ versions before 5.19.4, from 6.0.0 through 6.2.3 Description A denial of service...

The vulnerability of the Jolokia application programming interface of the Apache ActiveMQ messaging broker allows a perpetrator to execute arbitrary code.

The vulnerability of the Jolokia application programming interface of the Apache ActiveMQ messaging broker is related to deficiencies in the code generation management mechanism. Exploiting this vulnerability allows a malicious actor to execute arbitrary code by sending a configuration XML file...

Apache ActiveMQ < 5.19.4 / 6.x < 6.2.3 Improper Input Validation Code Injection

The version of Apache ActiveMQ running on the remote host is prior to 5.19.4 or 6.x prior to 6.2.3. It is, therefore, affected by an improper input validation and code injection vulnerability: - ActiveMQ Classic exposes the Jolokia JMX-HTTP bridge at /api/jolokia/ with a default access policy tha...

Apache ActiveMQ < 5.19.3 / 5.19.4, 6.x < 6.2.2 / 6.2.3 Classpath Path Traversal

The version of Apache ActiveMQ running on the remote host is prior to 5.19.3 / 5.19.4 or 6.x prior to 6.2.2 / 6.2.3. It is, therefore, affected by an improper validation and restriction of classpath path name vulnerability: - An authenticated user could exploit path concatenation to traverse the...

Linux Distros Unpatched Vulnerability : CVE-2026-39304

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correct...

Apache ActiveMQ 安全漏洞

Apache ActiveMQ is an open-source messaging middleware developed by the Apache Foundation in the United States. It supports Java Message Service, clustering, Spring Framework, etc. There is a security vulnerability in Apache ActiveMQ, which stems from improper handling of TLSv1.3 handshake Key...

EUVD-2026-20956

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 and future 5.19.x releases but was missed for all 6.0.0+...

GHSA-XVQC-PP94-FMPX Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT vulnerable to Integer Overflow or Wraparound

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 and future 5.19.x releases but was missed for all 6.0.0+...

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT vulnerable to Integer Overflow or Wraparound

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 and future 5.19.x releases but was missed for all 6.0.0+...

CVE-2026-40046

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 and future 5.19.x releases but was missed for all 6.0.0+...

UBUNTU-CVE-2026-40046

Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. The fix for "CVE-2025-66168: MQTT control packet remaining length field is not properly validated" was only applied to 5.19.2 and future 5.19.x releases but was missed for all 6.0.0+...