Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Activemq | < 5.19.7 |
| Apache | Activemq Broker | < 5.19.7 |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/k3233c1x506z3w7x4z0dqvd86d4v2fr2Mailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/31/22Mailing ListThird Party Advisory
FAQ
What is CVE-2026-49270?
CVE-2026-49270 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 syncDurable...
How severe is CVE-2026-49270?
CVE-2026-49270 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-49270?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Activemq, Apache Activemq Broker.