CVE
CVE-2026-57967
Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment
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.
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Related Resources
No items found.
References
http://www.openwall.com/lists/oss-security/2026/09/10/5, https://repo.maven.apache.org/maven2, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57967.json, https://lists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6y, https://nvd.nist.gov/vuln/detail/CVE-2026-57967, https://github.com/c0dem4sters/CVE-2026-57967