CVE-2026-57967

criticalpriority · track · 11OT risk · elevatedEPSS 0.015 · 74 %ileexploit · PoCDERUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.47% (74th) EPSS

CVSS 9.8 · critical

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

fstec_bdu · cert_bund · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306US

exploits (1)

Public proof-of-concept and weaponised exploit code.

c0dem4sters/CVE-2026-57967CVE-2026-57967 PoC — Apache ActiveMQ Artemis unauthenticated session hijacking via SESSION_REATTACH (2.50.0–2.56.0)PoC · poc_in_github

affected products (6)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Apache ActiveMQ≤ Artemis <2.57.0cert_bundDE
Apache Software Foundation ActiveMQ Artemis2.50.0 → 2.56.0fstec_bduRU
Apache Software Foundation Artemis1.0.0 → 2.44.0fstec_bduRU
apache artemis1.0.0 → 2.44.0nvdUScpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*
apache artemis2.50.0 → 2.57.0nvdUScpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3289Apache ActiveMQ Artemis: Mehrere SchwachstellenDeutsch2026-09-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache ActiveMQ Artemis ausnutzen, um Sicherheitsvorkehrungen zu umgehen, authentifizierte Sitzungen zu kapern, Daten zu manipulieren oder offenzulegen oder Denial-of-Service-Zustände herbeizuführen.

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16034 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2026-09-10modified 2026-10-09

references (3) nvd

External citations — patches, advisories, analysis.

http://www.openwall.com/lists/oss-security/2026/09/10/5Mailing ListThird Party Advisory
https://github.com/c0dem4sters/CVE-2026-57967
https://lists.apache.org/thread/fxfjqrdsnksw5f17zs3yqo864lblgv6yMailing ListVendor Advisory

scry

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