CVE-2026-74761

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

Published: Sep 9, 2026Updated: Sep 18, 2026 Sources: CVE List NVDCWE-20

7.5HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-20

Affected Products

apache

oss-project·USaka apache http server, apache httpd

activemqLibraryLibrary

OSS Libraries / generic-library

activemq allMixed

Web & CMS Plugins / cms-core

activemq brokerWeb App

Databases / cache-message-queue

Apache Software Foundation

oss-project·USaka apache foundation

Apache ActiveMQ BrokerWeb App

Databases / cache-message-queue

Apache ActiveMQ AllLibraryLibrary

OSS Libraries / generic-library

Apache ActiveMQ

Databases / cache-message-queue

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://lists.apache.org/thread/n9md06jo7ccqmj2mntx4kpcl2d5xqntz

lists.apache.org

http://www.openwall.com/lists/oss-security/2026/09/08/12

openwall.com

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