CVE-2026-75880 — Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service

Description (CNA)

An authenticated client could attach a consumer with a selector containing crafted wildcard usage that results in excessive evaluation during message delivery attempts, occupying a shared broker thread and leading to 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 this issue.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Artemis	affected 2.50.0 through 2.56.0
Apache Software Foundation / Apache ActiveMQ Artemis	affected 1.0.0 through 2.44.0

CWE

CWE-1333

References

https://lists.apache.org/thread/db34g9qoxd8p08086cr95683fkb8wm5r

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/09/10/7

CISA-ADP

No English description supplied.

No references supplied.