CVE-2026-57822: Apache Artemis, Apache ActiveMQ Artemis: Message-based management parameter deserialization may lead to denial of service

[Clebert Suconic <clebertsuconic () apache org>]

Severity: important 

Affected versions:

- Apache Artemis (org.apache.artemis:artemis-core-client) 2.50.0 through 2.56.0
- Apache ActiveMQ Artemis (org.apache.activemq:artemis-core-client) 1.3.0 through 2.44.0

Description:

When the broker is processing message-based management requests, sent by an authenticated messaging client that is 
authorized with MANAGE permission to perform management-via-messaging, the parameter processing can trigger Java 
deserialization of certain method parameters that the broker will not utilise. The permitted types allow to craft a 
payload causing excessive computation and pinning the processing thread, leading to denial of service.




This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.3.0 through 2.44.0.



Users are recommended to upgrade to version 2.57.0, which fixes the issue.

Credit:

Clebert Suconic (finder)
Mike Read (reporter)

References:

https://artemis.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-57822