Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [day] [month] [year] [list]
Message-ID: <fdd6b173-e351-a6c1-b216-30f0d7fc0c98@apache.org>
Date: Wed, 09 Sep 2026 20:24:17 +0000
From: Clebert Suconic <clebertsuconic@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-49364: Apache Artemis, Apache ActiveMQ Artemis:
 Pre-Authentication Cluster Credential Exposure to Discovered Peers 

Severity: important 

Affected versions:

- Apache Artemis (org.apache.artemis:artemis-core-client) 2.50.0 through 2.56.0
- Apache Artemis (org.apache.artemis:artemis-server) 2.50.0 through 2.56.0
- Apache ActiveMQ Artemis (org.apache.activemq:artemis-core-client) 1.0.0 through 2.44.0
- Apache ActiveMQ Artemis (org.apache.activemq:artemis-server) 1.0.0 through 2.44.0

Description:

An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake.

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.

Credit:

Domenico Francesco Bruscino (finder)

References:

https://artemis.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-49364

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.