Description
An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake.
This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0.
Users are recommended to upgrade to version 2.57.0, which fixes the issue.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Artemis | >= 2.50.0, <= 2.56.0 |
| Apache Software Foundation | Apache Artemis | >= 2.50.0, <= 2.56.0 |
| Apache Software Foundation | Apache ActiveMQ Artemis | >= 1.0.0, <= 2.44.0 |
| Apache Software Foundation | Apache ActiveMQ Artemis | >= 1.0.0, <= 2.44.0 |
References
- https://lists.apache.org/thread/4qbgcz3k38q30bfbf7hphtomrdc8l8n8Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/09/10/3Mailing List, Third Party Advisory
Timeline
- Published
- Sep 10, 2026
- Last modified
- Sep 16, 2026
- NVD status
- Analyzed