# CVE-2026-67593: Apache Artemis Openwire RemoveSubscriptionInfo unauthenticated queue deletion

Source: https://junglewise.ai/threats/cve-2026-67593-apache-artemis-openwire-removesubscriptioninfo-unauthenticated  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-10. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-67593 · Severity: critical · CVSS 9.1 · Published 2026-09-10

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.

Technologies: [Apache Activemq Artemis](https://junglewise.ai/threats/technologies/activemq-artemis), [Apache Artemis](https://junglewise.ai/threats/technologies/artemis). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-67593 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-67593 being exploited in the wild.

**How severe is CVE-2026-67593?** Critical severity, with a CVSS score of 9.1, published 10 September 2026.

**Which products and versions are affected?** Apache Activemq Artemis 1.0.0 through 2.44.0; Apache Artemis 2.50.0 through 2.56.0.

**Is there a fix for CVE-2026-67593?** A patch was published: Fixed in version 2.57.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-67593 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-67593?** Check whether you run Apache Activemq Artemis or Apache Artemis at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## 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

## References

- [https://repo.maven.apache.org/maven2](https://repo.maven.apache.org/maven2)
- [https://lists.apache.org/thread/zlglnsg8s5xv8n56d15dm5mf00h2d8xs](https://lists.apache.org/thread/zlglnsg8s5xv8n56d15dm5mf00h2d8xs)

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