CVE-2026-49364

9.1 criticalEPSS 0.6%

Critical (9.1) in apache artemis. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.1 critical

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2026-09-10
Modified: 2026-09-16
Record from: the NVD, synced 2026-10-19

Affected

apache:artemis

References

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

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