CVE-2026-49364

critical · 9.1

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.

9.1

CVSS

0.6%

EPSS (exploit prob.)

47th

EPSS percentile

2026-09-10

Published

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

Weaknesses

CWE-306

Affected products

Vendor	Product	Affected versions
apache	artemis	>= 1.0.0, < 2.44.0
apache	artemis	>= 2.50.0, < 2.57.0

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-49364