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CVE-2026-57967

CRITICAL CVSS: 9.8 Published: 2026-09-10 Modified: 2026-09-16

Description

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.

Affected Platforms

Apache Artemis

Weakness Type

CWE-306

References