CVE-2026-53917

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message...

UBUNTU-CVE-2026-50734

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. The value is not validate and causes t...

CVE-2026-50734

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. The value is not validate and causes t...

CVE-2026-53916 Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: Unbounded header buffer in STOMP NIO codec

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. An unauthenticated client that opens a STOMP NIO connection can send header bytes that never terminate which makes the broker buffer them without limit, exhausting the JVM hea...

PT-2026-53838

Name of the Vulnerable Software and Affected Versions Apache ActiveMQ versions prior to 5.19.8 Apache ActiveMQ versions 6.0.0 through 6.2.6 Apache ActiveMQ All versions prior to 5.19.8 Apache ActiveMQ All versions 6.0.0 through 6.2.6 Apache ActiveMQ Stomp versions prior to 5.19.8 Apache ActiveMQ...

CVE-2026-42253

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. The MessageServlet in the ActiveMQ web console API copies every JMS message property into an HTTP response header without any validation. This can allow...

CVE-2026-45505

CVE-2026-45505 details a Code Injection vulnerability in Apache ActiveMQ components (Broker/All/ActiveMQ) where non-standard Jolokia discovery wrappers (e.g., masterslave:vm://, static:vm://) bypass the fix for CVE-2026-34197. An authenticated attacker could abuse Jolokia’s JMX-HTTP bridge at /ap...

PT-2026-45383

Name of the Vulnerable Software and Affected Versions Apache ActiveMQ Broker versions prior to 5.19.7 Apache ActiveMQ Broker versions 6.0.0 through 6.2.5 Apache ActiveMQ versions prior to 5.19.7 Apache ActiveMQ versions 6.0.0 through 6.2.5 Apache ActiveMQ All versions prior to 5.19.7 Apache...

VulnCheck KEV: CVE-2026-40466

Improper Input Validation, Improper Control of Generation of Code 'Code Injection' vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated attacker may bypass the fix in CVE-2026-34197 by adding a connector using an HTTP Discovery transport...

RHCOS 2 : activemq (RHSA-2014:0245)

The remote Red Hat Enterprise Linux CoreOS 2 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:0245 advisory. - HawtJNI: predictable temporary file name leading to local arbitrary code execution CVE-2013-2035 - Framework: XML External Entity...

OESA-2026-2125 activemq security update

The most popular and powerful open source messaging and Integration Patterns server. Security Fixes: 'Severity: low \n\nAffected versions:\n\n- Apache ActiveMQ Client org.apache.activemq:activemq-client before 5.19.3\n- Apache ActiveMQ Client org.apache.activemq:activemq-client 6.0.0 before...

EUVD-2026-25412

Improper Input Validation, Improper Control of Generation of Code 'Code Injection' vulnerability in Apache ActiveMQ, Apache ActiveMQ Broker, Apache ActiveMQ All. An authenticated attacker can use the admin web console page to construct a malicious broker name that bypasses name validation to...

CVE-2026-41043 Apache ActiveMQ, Apache ActiveMQ Web: ActiveMQ Web Console - XSS vulnerability when browsing queues

Improper Neutralization of Script-Related HTML Tags in a Web Page Basic XSS vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML instead of XML and by injecting...

CVE-2026-41043 Apache ActiveMQ, Apache ActiveMQ Web: ActiveMQ Web Console - XSS vulnerability when browsing queues

Improper Neutralization of Script-Related HTML Tags in a Web Page Basic XSS vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. An authenticated attacker can show malicious content when browsing queues in the web console by overriding the content type to be HTML instead of XML and by injecting...

CVE-2026-40466 Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Possible bypass of CVE-2026-34197 via HTTP discovery second-stage URI

Improper Input Validation, Improper Control of Generation of Code 'Code Injection' vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated attacker may bypass the fix in CVE-2026-34197 by adding a connector using an HTTP Discovery transport...

PT-2026-34871

Name of the Vulnerable Software and Affected Versions Apache ActiveMQ versions prior to 5.19.6 Apache ActiveMQ versions 6.0.0 through 6.2.4 Apache ActiveMQ Web versions prior to 5.19.6 Apache ActiveMQ Web versions 6.0.0 through 6.2.4 Description An authenticated attacker can display malicious...

Linux Distros Unpatched Vulnerability : CVE-2026-41044

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper Input Validation, Improper Control of Generation of Code 'Code Injection' vulnerability in Apache ActiveMQ, Apache ActiveMQ Broker, Apache ActiveMQ All...

CVE-2026-40046

A flaw was found in Apache ActiveMQ, Apache ActiveMQ All and Apache ActiveMQ MQTT. The fix for CVE-2025-66168 was not applied for 6.0.0+ versions. This exposed the underlying integer overflow/wraparound vulnerability when handling MQTT control packets, causing the broker to misinterpret payloads...

EUVD-2026-21362

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...

DEBIAN-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...