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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 10 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 10 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Thu, 10 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

threat_severity

Important


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

Type Values Removed Values Added
First Time appeared Apache
Apache activemq Artemis
Apache artemis
Vendors & Products Apache
Apache activemq Artemis
Apache artemis

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-09-10T15:52:25.278Z

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

Link: CVE-2026-57967

cve-icon Vulnrichment

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

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-09-10T16:17:16.243

Link: CVE-2026-57967

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-10T05:40:15Z

Links: CVE-2026-57967 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-11T01:15:15Z

Weaknesses