Skip to content
Fencer Vulns
high 7.5

CVE-2026-74761 json

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

published 2026-09-09 2 mo ago modified 2026-09-19 51 d ago also BIT-activemq-2026-74761 , EUVD-2026-74829

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami activemq 5.19.11, 6.3.2
  • Apache Software Foundation Apache ActiveMQ Broker 5.19.11, 6.3.2
  • Apache Software Foundation Apache ActiveMQ All 5.19.11, 6.3.2
  • Apache Software Foundation Apache ActiveMQ 5.19.11, 6.3.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-74761 updated cvss 6.3

Apache ActiveMQ Broker: Apache ActiveMQ All: Apache ActiveMQ: Apache ActiveMQ: Client ID spoofing during durable topic subscription removal

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
59 d ago

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
bitnami activemq
<5.19.11
>=6.0.0, <6.3.2
5.19.11
6.3.2

Affected products

  • Apache Software Foundation Apache ActiveMQ Broker
  • Apache Software Foundation Apache ActiveMQ All
  • Apache Software Foundation Apache ActiveMQ

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.