CVE-2026-49364
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS probability
- 0.16%
- CWE
- CWE-306
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- Apache Software Foundation Apache Artemis
- Apache Software Foundation Apache ActiveMQ Artemis
Weakness type
Related vulnerabilities
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- CVE-2026-88285 — GV-LPC2011/LPC2211 - Unauthenticated PTZ Control Service
- CVE-2026-49362 — Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler Allows Unauthorized Queue Creation
- CVE-2026-49363 — Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Information Disclosure in CORE Protocol Topology Subscription
- CVE-2026-57967 — Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment
- CVE-2026-67593 — Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-authentication Openwire protocol handling can result in queue deletion