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vulnerabilities
CVE-2026-75880: Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service
CVE-2026-75880 affects Apache Artemis and Apache ActiveMQ Artemis, where an authenticated client can craft a message selector with wildcards to trigger excessive evaluation during message delivery. This consumption of broker resources on a shared thread can cause denial of service. The vulnerability affects Artemis versions 2.50.0 through 2.56.0 and ActiveMQ Artemis versions 1.0.0 through 2.44.0.
Why it matters: Organizations running vulnerable versions of Artemis or ActiveMQ Artemis need to upgrade immediately, as authenticated users can disable message broker availability without requiring exploit code or external access.
- Source published
- First seen by Cybersecurity Tracker