CVE-2026-75880
Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service
- State
- Published
- Severity
- 6.5 Medium
- Published
- Sep 10, 2026
- Updated
- Sep 18, 2026
- Reserved
- Aug 18, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-1333 Inefficient regular expression complexity
Affected Products
| Product | Versions |
|---|---|
Apache ArtemisApache Software Foundation |
|
Apache ActiveMQ ArtemisApache Software Foundation |
|
References
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