Improper Input Validation in Apache ActiveMQ Products
CVE-2026-74761

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache ActiveMQ Broker
Apache ActiveMQ All
Apache ActiveMQ
Vendor
CVE Published:
9 September 2026

What is CVE-2026-74761?

A vulnerability exists in Apache ActiveMQ where improper input validation allows authenticated clients to spoof the clientId while removing a durable topic subscription. This issue impacts several versions of Apache ActiveMQ Broker and its variants, necessitating users to upgrade to version 6.3.2 or 5.19.11 to mitigate the risk. Failure to address this could lead to unauthorized access and manipulation of subscription management.

Affected Version(s)

Apache ActiveMQ 6.0.0 < 6.3.2

Apache ActiveMQ 0 < 5.19.11

Apache ActiveMQ All 6.0.0 < 6.3.2

References

https://lists.apache.org/thread/n9md06jo7ccqmj2mntx4kpcl2...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wanxin Yin (yaklang.io)
.