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 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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.16%
- CWE
- CWE-1333
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Affected products
- Apache Software Foundation Apache Artemis
- Apache Software Foundation Apache ActiveMQ Artemis
Weakness type
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