CVE-2021-26118: Apache Artemis

High severity, CVSS 7.5. EPSS: 3.9% chance of exploitation in the next 30 days.

While investigating ARTEMIS-2964 it was found that the creation of advisory messages in the OpenWire protocol head of Apache ActiveMQ Artemis 2.15.0 bypassed policy based access control for the entire session. Production of advisory messages was not subject to access control in error.

Affected products

• Apache Artemis: version 2.15.0 only
• Netapp Oncommand Workflow Automation: affected versions not specified

Published 2021-01-27. Last modified 2026-06-17.