CVE-2026-49270
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.
- Score
- CVSS 3.1 5.9 Medium
- Status
- Analyzed - security@apache.org
- Published
- 2026-06-01
- Last modified
- 2026-06-01
- Weaknesses
- CWE-1230
Affected products
- Activemq (Apache)
- Activemq Broker (Apache)
- Apache Activemq (Apache Software Foundation)
- Apache Activemq All (Apache Software Foundation)
- Apache Activemq Broker (Apache Software Foundation)
References
- https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2
- http://www.openwall.com/lists/oss-security/2026/05/31/22
