CVE-2026-74761

[Support]

CVE-2026-74761
Improper input validation in TopicRegion in Apache ActiveMQ, Apache ActiveMQ Broker, and Apache ActiveMQ All on all platforms.




An authenticated client can spoof clientId when removing a durable topic subscription.



This issue affects Apache ActiveMQ Broker: before 5.19.11, from 6.0.0 before 6.3.2; Apache ActiveMQ All: before 5.19.11, from 6.0.0 before 6.3.2; Apache ActiveMQ: before 5.19.11, from 6.0.0 before 6.3.2.



Users are recommended to upgrade to version 6.3.2 or 5.19.11 which fixes the issue.