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.

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History

Thu, 10 Sep 2026 06:30:00 +0000

Type Values Removed Values Added
References

Thu, 10 Sep 2026 05:00:00 +0000

Type Values Removed Values Added
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.
Title Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment
Weaknesses CWE-306
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-09-10T05:11:48.679Z

Reserved: 2026-06-26T17:05:04.459Z

Link: CVE-2026-57967

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-10T05:17:01.443

Modified: 2026-09-10T06:17:05.580

Link: CVE-2026-57967

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T06:30:05Z

Weaknesses