---
id: CVE-2026-74761
title: "Improper input validation in TopicRegion in Apache ActiveMQ, Apache ActiveMQ Broker, and Apache ActiveMQ All\_on all platforms.\n\n\n\n\nAn authenticated client can spoof clientId when removing a durable topic subscription.\n\n\n\nThis issue affec…"
summary: "Improper input validation in TopicRegion in Apache ActiveMQ, Apache ActiveMQ Broker, and Apache ActiveMQ All\_on all platforms.\n\n\n\n\nAn authenticated client can spoof clientId when removing a durable topic subscription.\n\n\n\nThis issue affec…"
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-20
vendor: apache
product: activemq
affected:
  - activemq < 5.19.11
  - 'activemq >= 6.0.0, < 6.3.2'
  - activemq_all < 5.19.11
  - 'activemq_all >= 6.0.0, < 6.3.2'
  - activemq_broker < 5.19.11
  - 'activemq_broker >= 6.2.0, < 6.3.2'
patched:
  - activemq 6.3.2
  - activemq_all 6.3.2
  - activemq_broker 6.3.2
published: '2026-09-09'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T14:37:42.543'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74761'
references:
  - url: 'https://lists.apache.org/thread/n9md06jo7ccqmj2mntx4kpcl2d5xqntz'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/08/12'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
epss: 0.00623
epssPercentile: 0.47654
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-10T18:00:47.594630Z'
ingestedAt: '2026-09-11T14:42:19.864Z'
---

## Overview

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

- `activemq < 5.19.11`
- `activemq >= 6.0.0, < 6.3.2`
- `activemq_all < 5.19.11`
- `activemq_all >= 6.0.0, < 6.3.2`
- `activemq_broker < 5.19.11`
- `activemq_broker >= 6.2.0, < 6.3.2`

## Remediation

Upgrade past the affected range:

- `activemq 6.3.2`
- `activemq_all 6.3.2`
- `activemq_broker 6.3.2`