CVE-2026-67593: Apache Artemis

Critical severity, CVSS 9.1. EPSS: 0.9% chance of exploitation in the next 30 days.

A remote attacker can craft an Openwire RemoveSubscriptionInfo command to cause the deletion of a queue on the Artemis broker before the connection authentication and authorization stage or at any time thereafter. 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 the issue.

Affected products

• Apache Artemis: from 1.0.0, before 2.44.0 (fixed in 2.44.0); from 2.50.0, before 2.57.0 (fixed in 2.57.0)

Published 2026-09-10. Last modified 2026-09-16.