CVE-2026-57967

EUVD-2026-75246
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
apacheCNA
UNKNOWN
---
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
apacheartemis
2.50.0 ≤
𝑥
≤ 2.56.0
CNA
apacheartemis
1.0.0 ≤
𝑥
≤ 2.44.0
CNA
Common Weakness Enumeration
References
https://lists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6y
http://www.openwall.com/lists/oss-security/2026/09/10/5