CVE-2026-49363: CWE-306 Missing authentication for critical function in Apache Software Foundation Apache Artemis
An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are recommended to upgrade to version 2.57.0, which fixes the issue.
AI Analysis
Technical Summary
This vulnerability (CWE-306) in Apache Artemis allows unauthenticated remote attackers to discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request over the CORE protocol prior to authentication. The flaw affects Apache Artemis versions 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis versions 1.0.0 through 2.44.0. The vendor has addressed this issue in version 2.57.0.
Potential Impact
An attacker can gain information about cluster node details without authentication, which may aid in further reconnaissance or targeted attacks. There is no indication of direct code execution or data modification from this vulnerability alone.
Mitigation Recommendations
Users should upgrade Apache Artemis and Apache ActiveMQ Artemis to version 2.57.0 or later, where this vulnerability is fixed. No other mitigations or temporary workarounds are indicated.
CVE-2026-49363: CWE-306 Missing authentication for critical function in Apache Software Foundation Apache Artemis
Description
An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are recommended to upgrade to version 2.57.0, which fixes the issue.
Affected software
pkg:maven/Apache Software Foundation/org.apache.artemis:artemis-serverpkg:maven/Apache Software Foundation/org.apache.activemq:artemis-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-306) in Apache Artemis allows unauthenticated remote attackers to discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request over the CORE protocol prior to authentication. The flaw affects Apache Artemis versions 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis versions 1.0.0 through 2.44.0. The vendor has addressed this issue in version 2.57.0.
Potential Impact
An attacker can gain information about cluster node details without authentication, which may aid in further reconnaissance or targeted attacks. There is no indication of direct code execution or data modification from this vulnerability alone.
Mitigation Recommendations
Users should upgrade Apache Artemis and Apache ActiveMQ Artemis to version 2.57.0 or later, where this vulnerability is fixed. No other mitigations or temporary workarounds are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-29T16:33:06.443Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa23b1eacd9273b499540f2
Added to database: 09/10/2026, 05:07:42 UTC
Last enriched: 09/10/2026, 05:23:05 UTC
Last updated: 09/10/2026, 05:46:16 UTC
Views: 6
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