Vulnerability Details CVE-2026-57967
An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session.
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 44.4%
CVSS Severity
CVSS v3 Score 9.8