medium6.5
CVE-2026-75880
An authenticated client could attach a consumer with a selector containing crafted wildcard usage that results in excessive evaluation during message delivery …
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Artemis | from 1.0.0 before 2.44.0 from 2.50.0 before 2.57.0 |