CVE-2026-75880mediumCWE-1333

CVE-2026-75880: medium-severity vulnerability in Apache Artemis

Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.7%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Apache Software Foundation · Apache ActiveMQ ArtemisApache Software Foundation · Apache Artemis
Related CVEs — Apache Artemis

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