CVE-2026-49364

Critical · CVSS 9.1

CVSS: 9.1; nvd
EPSS: —
KEV: No
Class: other; CWE-306

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.

References

https://lists.apache.org/thread/4qbgcz3k38q30bfbf7hphtomrdc8l8n8
http://www.openwall.com/lists/oss-security/2026/09/10/3

Status: profiled · ingested 2026-09-16T06:00:31.000Z