CVE-2026-74761

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Spoofing of RemoveSubscription clientId

State: Published
Severity: 7.5 High
Published: Sep 9, 2026
Updated: Sep 10, 2026
Reserved: Aug 15, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
Apache ActiveMQ BrokerApache Software Foundation	6.0.0 to before 6.3.2Affected before 5.19.11Affected
Apache ActiveMQ AllApache Software Foundation	6.0.0 to before 6.3.2Affected before 5.19.11Affected
Apache ActiveMQApache Software Foundation	6.0.0 to before 6.3.2Affected before 5.19.11Affected

References

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