Vulnerability Details CVE-2026-49363
An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication.
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 0.004
EPSS Ranking 34.0%
CVSS Severity
CVSS v3 Score 7.5