CVE-2025-61581: Apache Traffic Control: ReDoS issue in Traffic Router configuration

[Arnout Engelen <engelen () apache org>]

Severity: low 

Affected versions:

- Apache Traffic Control: all versions

Description:

** UNSUPPORTED WHEN ASSIGNED ** Inefficient Regular Expression Complexity vulnerability in Apache Traffic Control.

This issue affects Apache Traffic Control: all versions.

People with access to the management interface of the Traffic Router component could specify malicious patterns and 
cause unavailability.

As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an 
alternative or restrict access to the instance to trusted users.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Credit:

Chris Lemmons (finder)

References:

https://trafficcontrol.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-61581