Executive brief
Apache Artemis is a message broker that routes and queues messages between applications. A remote attacker can send a crafted command to delete queues on the broker without authentication, potentially disrupting message delivery and causing service outages. This can occur before a client has even authenticated to the system.
Technical details
This vulnerability is an authentication bypass and resource deletion flaw in the Openwire protocol handler. An attacker can craft a RemoveSubscriptionInfo command that is processed by the Artemis broker before authentication and authorization checks are enforced, or at any point after connection. The vulnerable component fails to validate the client's credentials prior to handling queue deletion requests. The attack is network-accessible and requires only the ability to send Openwire protocol messages to the broker. A successful exploit allows an attacker to delete arbitrary queues, disrupting message broker operations. Apache recommends upgrading to version 2.57.0 or later.
Affected products
- Apache Artemis 2.50.0 through 2.56.0
- Apache ActiveMQ Artemis 1.0.0 through 2.44.0
Timeline
- 2026-09-10: disclosed: CVE-2026-67593 published
- patched: Fixed in version 2.57.0