CVE-2026-57967
criticalAn unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and assume ongoing execution of the previousl…
Vendor / product: Apache — artemis
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.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
Timeline (UTC)
Published: 2026-09-10 05:17
Modified: 2026-10-09 16:17
NVD status: Modified
Last synced 2 days ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
apache / artemis ≥1.0.0 <2.44.0, ≥2.50.0 <2.57.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://lists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6y
References
- https://lists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6y security@apache.org
- http://www.openwall.com/lists/oss-security/2026/09/10/5 af854a3a-2127-422b-91ae-364da2661108
- https://github.com/c0dem4sters/CVE-2026-57967 af854a3a-2127-422b-91ae-364da2661108
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗