Vulnerability · Published Jul 28, 2026 · Assigned by apache
CVE-2026-61487Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Authorization bypass via temporary composite destinations
Medium 6.5
In plain English
A medium-severity security flaw in Apache ActiveMQ from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated low-privilege user can bypass a per-destination write ACL by sending to an ActiveMQ temporary composite destination whose physical name is a comma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is bypassed due to the composite destination being marked as temporary. This issue affects Apache ActiveMQ Broker: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8. Users are recommended to upgrade to version 5.19.9, 6.2.8 or 6.3.0, which fixes the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | activemq | no fix listed | DEBIAN-CVE-2026-61487 |
| Debian:13 | activemq | no fix listed | DEBIAN-CVE-2026-61487 |
| Ubuntu:24.04:LTS | activemq | no fix listed | UBUNTU-CVE-2026-61487 |
| Ubuntu:26.04:LTS | activemq | no fix listed | UBUNTU-CVE-2026-61487 |
| Ubuntu:26.10 | activemq | no fix listed | UBUNTU-CVE-2026-61487 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache ActiveMQ Broker | 0 – before 5.19.96.0.0 – before 6.2.8 |
| Apache Software Foundation | Apache ActiveMQ All | 0 – before 5.19.96.0.0 – before 6.2.8 |
| Apache Software Foundation | Apache ActiveMQ | 0 – before 5.19.96.0.0 – before 6.2.8 |
Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N