CVE-2026-32642: Apache ActiveMQ Artemis incorrect authorization in OpenWire protocol

CVE-2026-32642 · Severity: medium · CVSS 4.3 · Published 2026-03-24

Apache ActiveMQ Artemis is a high-performance message broker used to manage data communication between different software applications. A security flaw allows certain authorized users to bypass restrictions and create temporary message addresses they should not have permission to create. While these addresses are removed when the user disconnects, this represents a failure in the system's access control rules.

Vendors: Maven.

Quick answers

Is CVE-2026-32642 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-32642 being exploited in the wild.
How severe is CVE-2026-32642?
Medium severity, with a CVSS score of 4.3, published 24 March 2026.
Which products and versions are affected?
org.apache.activemq:artemis-openwire-protocol (Maven) ECOSYSTEM:introduced=2.0.0,fixed=2.53.0; org.apache.artemis:artemis-openwire-protocol (Maven) ECOSYSTEM:introduced=2.50.0,fixed=2.53.0.
Is there a fix for CVE-2026-32642?
Yes. org.apache.activemq:artemis-openwire-protocol (Maven): upgrade to 2.53.0 or later; org.apache.artemis:artemis-openwire-protocol (Maven): upgrade to 2.53.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-32642 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-32642?
Check whether you run org.apache.activemq:artemis-openwire-protocol (Maven) or org.apache.artemis:artemis-openwire-protocol (Maven) 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.

How to fix

  • org.apache.activemq:artemis-openwire-protocol (Maven): upgrade to 2.53.0 or later
    # set org.apache.activemq:artemis-openwire-protocol to 2.53.0 in your pom.xml or build.gradle
  • org.apache.artemis:artemis-openwire-protocol (Maven): upgrade to 2.53.0 or later
    # set org.apache.artemis:artemis-openwire-protocol to 2.53.0 in your pom.xml or build.gradle

Technical details

An incorrect authorization vulnerability (CWE-863) exists in the OpenWire protocol implementation of Apache Artemis. The flaw occurs when an authenticated user with 'createDurableQueue' permissions, but lacking 'createAddress' permissions, attempts to create a non-durable JMS topic subscription on a non-existent address while auto-creation is disabled. Instead of failing as expected, the system incorrectly creates a temporary address for the subscription. This address persists until the OpenWire connection is terminated. The issue is resolved in version 2.53.0.

Affected products

  • Apache Artemis 2.50.0 through 2.52.0
  • Apache ActiveMQ Artemis 2.0.0 through 2.44.0

Identifiers

  • CVE-2026-32642
  • GHSA-f4gc-mwrg-q36r

Timeline

  • 2026-03-20: disclosed: Initial disclosure on oss-security mailing list
  • 2026-03-24: advisory: NVD publication date

References

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