CVE-2026-49364

CriticalCVSS 9.1/10Last modified Sep 16, 2026

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 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-306

Affected software

No affected versions have been published.

Timeline

Published
Sep 10, 2026
Last modified
Sep 16, 2026
NVD status
Analyzed

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CVE-2026-49364: Critical severity, CVSS 9.1 | Vulnix