by Kastro
Paper/Archive/CVE-2026-57967

CVE-2026-57967

Apache Software Foundation Apache Artemis — Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment

EPSS 1%CVSS 9.8
critical.is priorityof 100
44
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 73.7.737 × 2014.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Apache Artemis2.50.0 – 2.56.0–CNA
Apache ActiveMQ Artemis1.0.0 – 2.44.0–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/c0dem4sters/CVE-2026-57967advisorylists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6yrefopenwall.com/lists/oss-security/2026/09/10/5