CVE-2026-75880
Medium
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Apache Artemis
PublishedSep 10, 2026
First seenSep 10, 2026
Weakness typeCWE-1333CWE-1333
How to fix
Update
- apache artemis2.44.0, 2.57.0 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache artemis | 1.0.0 ≤ v < 2.44.0, 2.50.0 ≤ v < 2.57.0 | 2.44.0, 2.57.0 |
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