Vulnerability · Published Oct 16, 2025 · Assigned by apache
CVE-2025-61581Apache Traffic Control: ReDoS issue in Traffic Router configuration
High 7.5
In plain English
A high-severity regular-expression denial of service in Apache Traffic Control 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 0.7% (higher than 55% of all known vulnerabilities).
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/apache/trafficcontrol | no fix listed | GO-2025-4033 |
| Go | github.com/apache/trafficcontrol/v8 | no fix listed | GHSA-9m49-p2j3-c6xm |
| Go | github.com/apache/trafficcontrol/v8 | no fix listed | GO-2025-4033 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Traffic Control | 0 – before * |
Weakness: CWE-1333 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H