CVE-2026-74761

HIGH CVSS 3.1: 7.5 EPSS 0.62%
Updated Sep 18, 2026
Apache
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions 6.0.0 — 6.3.2
Fixed In 6.3.2
Type CWE-20 (Improper Input Validation)
Vendor Apache
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Apache Activemq
cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
— 5.19.11
Apache Activemq
cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
6.0.0 6.3.2
Apache Activemq_All
cpe:2.3:a:apache:activemq_all:*:*:*:*:*:*:*:*
— 5.19.11
Apache Activemq_All
cpe:2.3:a:apache:activemq_all:*:*:*:*:*:*:*:*
6.0.0 6.3.2
Apache Activemq_Broker
cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:*
— 5.19.11
Apache Activemq_Broker
cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:*
6.2.0 6.3.2