CVE-2026-49362: Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler Allows Unauthorized Queue Creation

[Clebert Suconic <cl...@apache.org>]

Severity: important 

Affected versions:

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

Description:

An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service.

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)
Fedrick Sequeira (reporter)
Mike Read (reporter)

References:

https://artemis.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-49362


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