CVE-2026-49362

Apache Software Foundation · Apache ActiveMQ Artemis

An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service.

Executive summary

An unauthenticated remote vulnerability in Apache ActiveMQ Artemis allows attackers to manipulate broker state and trigger a denial of service condition.

Vulnerability

This is a missing authentication flaw (CWE-306) affecting the CORE protocol, which allows unauthenticated remote attackers to perform unauthorized administrative actions by creating arbitrary durable queues.

Business impact

The ability for an unauthenticated attacker to manipulate broker queues poses a significant risk to system availability and message integrity. A successful exploit can lead to a denial of service, potentially disrupting critical messaging services that rely on the broker, which justifies the high severity CVSS score of 7.5.

Remediation

Immediate Action: Upgrade all instances of Apache Artemis and Apache ActiveMQ Artemis to version 2.57.0 or later to apply the necessary authentication checks.

Proactive Monitoring: Monitor broker logs for unexpected queue creation events or unusual traffic patterns associated with the CORE protocol.

Compensating Controls: Implement network-level access controls to restrict access to the CORE protocol ports to authorized management segments only until the patch can be applied.

Exploitation status

Public Exploit Available: No (exploit_available: false)

Analyst recommendation

Given the ease of access for unauthenticated remote attackers and the direct impact on system availability, this vulnerability poses a clear risk to messaging infrastructure. Administrators should prioritize the deployment of version 2.57.0 as the primary and most effective method to mitigate this unauthorized access vector.

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History

CVE Brief tracked this CVE 5 days before it had a CVSS score.

  1. Disclosed CVE record published
  2. Collected by CVE Brief No CVSS score yet; tracked as early warning
  3. CVSS score assigned 7.5 (3.1)
  4. Analyst report written

Sources

Originally found and disclosed by Domenico Francesco Bruscino, Fedrick Sequeira, Mike Read, Tiago Ventura, per the CVE Program record.