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-2026-45505

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...

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...