Description
Exposure of Sensitive Information Through Metadata vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All.
Brokers that are configured with a network connector with syncDurableSubs set to true, are vulnerable to an unauthenticated attacker who can receive a list of all durable topic subscriptions in the broker, including client identifiers, subscription names, topic destinations, and JMS selector expressions, by sending a BrokerInfo command. The broker incorrectly responds without first ensuring the connection is authenticated. This issue affects Apache ActiveMQ Broker: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ All: before 5.19.7, from 6.0.0 before 6.2.6.
Users are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache ActiveMQ Broker | >= 5.14.0, < 5.19.7; >= 6.0.0, < 6.2.6 |
| Apache Software Foundation | Apache ActiveMQ | >= 5.14.0, < 5.19.7; >= 6.0.0, < 6.2.6 |
| Apache Software Foundation | Apache ActiveMQ All | >= 5.14.0, < 5.19.7; >= 6.0.0, < 6.2.6 |
References
- https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/31/22Mailing List, Third Party Advisory
Timeline
- Published
- Jun 1, 2026
- Last modified
- Jul 22, 2026
- NVD status
- Analyzed