Vulnerability record · CVE-2026-74761 · published 9 September 2026

CVE-2026-74761: Apache activemq improper input validation vulnerability

Apache · Activemq

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.

7.5 CVSS 3.1 High EPSS 0.62% · top 52.2% CWE-20 · Improper input validation

7.5CVSS 3.1 base score

0.62%EPSS exploitation probability, 30 days

NoNot in CISA KEV

3Affected product versions listed by NVD

2References

18 Sep 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Activemq Apache

Activemq All Apache

Activemq Broker Apache

References

Link	Tags
https://lists.apache.org/thread/n9md06jo7ccqmj2mntx4kpcl2d5xqntz	Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/08/12	Mailing List

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-74761), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.