CVE-2026-74761
Published:September 09, 2026
Updated:September 22, 2026
Improper input validation in TopicRegion in Apache ActiveMQ, Apache ActiveMQ Broker, and Apache ActiveMQ All on all platforms.
An authenticated client can spoof clientId when removing a durable topic subscription.
This issue affects Apache ActiveMQ Broker: before 5.19.11, from 6.0.0 before 6.3.2; Apache ActiveMQ All: before 5.19.11, from 6.0.0 before 6.3.2; Apache ActiveMQ: before 5.19.11, from 6.0.0 before 6.3.2.
Users are recommended to upgrade to version 6.3.2 or 5.19.11 which fixes the issue.
Affected Packages
https://github.com/apache/activemq.git (GITHUB):
Affected version(s) >=activemq-6.0.0 <activemq-6.3.2Fix Suggestion:
Update to version activemq-6.3.2https://github.com/apache/activemq.git (GITHUB):
Affected version(s) >=activemq-4.0 <activemq-5.19.11Fix Suggestion:
Update to version activemq-5.19.11org.apache.activemq:apache-activemq (JAVA):
Affected version(s) >=4.1.1 <5.19.11Fix Suggestion:
Update to version 5.19.11org.apache.activemq:activemq-all (JAVA):
Affected version(s) >=4.1.2 <5.19.11Fix Suggestion:
Update to version 5.19.11org.apache.activemq:activemq-broker (JAVA):
Affected version(s) >=6.0.0 <6.3.2Fix Suggestion:
Update to version 6.3.2org.apache.activemq:activemq-broker (JAVA):
Affected version(s) >=5.8.0 <5.19.11Fix Suggestion:
Update to version 5.19.11org.apache.activemq:activemq-all (JAVA):
Affected version(s) >=6.0.0 <6.3.2Fix Suggestion:
Update to version 6.3.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
0.64