CVE-2025-61581
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk53th percentile - higher than 53% of all known CVEs
Summary
An inefficient regular expression complexity (ReDoS) vulnerability has been found in Apache Traffic Control. People with access to the management interface of the Traffic Router component could specify malicious patterns and cause unavailability. The project is retired and no fix is planned.
Risk Assessment
An attacker with access to the management interface could cause a denial of service (DoS), making Traffic Router unavailable. Since the project is retired, no official patches will be released.
Recommendation
Restrict access to the Traffic Router management interface to trusted users only or find an alternative solution, as the project is no longer supported. Consider migrating to a supported product.
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Original NVD description (English source)
** 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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

