CVE-2026-49363

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/syjch88zw6pfdoso9vs46m23xkgxjbxo	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/10/2	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:artemis::::::::
	cpe:2.3:a:apache:artemis::::::::

History

No history.

Information

Published : 2026-09-10 05:17

Updated : 2026-09-16 01:10

NVD link : CVE-2026-49363

Mitre link : CVE-2026-49363

CVE.ORG link : CVE-2026-49363

JSON object : View

Products Affected

apache

artemis

CWE

CWE-306

Missing Authentication for Critical Function

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