Auth bypass in Apache Activemq_artemis
CVE-2026-27446
Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation…
Vulnerability class: Broken Authentication
EPSS: 0.002 (36.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Activemq_artemis
- Apache Artemis — versions 2.50.0
- Apache Software Foundation Activemq Artemis — versions 2.11.0
- Apache Software Foundation Artemis — versions 2.50.0
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2026-27446?
- CVE-2026-27446 is a critical-severity vulnerability in Apache Activemq_artemis, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-03-04.
- How severe is CVE-2026-27446?
- Critical severity. CVSS v3 base score is 9.8 out of 10.