Missing Authentication for Critical Function Affecting org.apache.activemq:artemis-server package, versions [2.11.0, 2.52.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published5 Mar 2026
- disclosed4 Mar 2026
- creditHardik Mehta
Introduced: 4 Mar 2026
CVE-2026-27446 (opens in a new tab)How to fix?
Upgrade org.apache.activemq:artemis-server to version 2.52.0 or higher.
Overview
org.apache.activemq:artemis-server is a server package for the ActiveMQ-Artemis project.
Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the Core protocol implementation. A malicious broker can force a broker to establish an outbound Core federation connection to it, and use it to inject or exfiltrate messages from the target broker.
Workaround
This vulnerability can be mitigated by removing Core protocol support from any acceptor receiving connections from untrusted sources, or by enforcing two-way SSL (certificate-based authentication) to require clients to present valid certificates before establishing a connection.