CVE-2026-49363

highpriority · track · 0OT risk · elevatedEPSS 0.008 · 57 %ileDEUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.80% (57th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

2 sources

cert_bund · nvd

EPSS · scored 2026-10-27

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication. 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.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondaryexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306US

affected products (4)

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 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.

sources

Which sources assert this record, and when.

cert_bund nvd NVD CVE.org MITRE

published 2026-09-10modified 2026-09-16

references (2) nvd

External citations — patches, advisories, analysis.

http://www.openwall.com/lists/oss-security/2026/09/10/2Mailing ListThird Party Advisory
https://lists.apache.org/thread/syjch88zw6pfdoso9vs46m23xkgxjbxoMailing ListVendor Advisory

scry

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