CVE-2026-74761

Name of the Vulnerable Software and Affected Versions Apache ActiveMQ versions prior to 5.19.11 Apache ActiveMQ versions 6.0.0 through 6.3.1 Apache ActiveMQ Broker versions prior to 5.19.11 Apache ActiveMQ Broker versions 6.0.0 through 6.3.1 Apache ActiveMQ All versions prior to 5.19.11 Apache ActiveMQ All versions 6.0.0 through 6.3.1

Description Improper input validation in TopicRegion allows an authenticated client to spoof the clientId when removing a durable topic subscription.

Recommendations Upgrade Apache ActiveMQ to version 5.19.11 or 6.3.2. Upgrade Apache ActiveMQ Broker to version 5.19.11 or 6.3.2. Upgrade Apache ActiveMQ All to version 5.19.11 or 6.3.2.