{"cve":"CVE-2025-61581","nvd":{"published":"2025-10-16T09:15:35.670","modified":"2026-10-23T22:10:00.160","status":"Modified","description":"** UNSUPPORTED WHEN ASSIGNED ** Inefficient Regular Expression Complexity vulnerability in Apache Traffic Control.\n\nThis issue affects Apache Traffic Control: all versions.\n\nPeople with access to the management interface of the Traffic Router component could specify malicious patterns and cause unavailability.\n\nAs 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.\n\nNOTE: This vulnerability only affects products that are no longer supported by the maintainer.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-1333"],"references":["https://lists.apache.org/thread/mx2jxgnlop2f4vbqnvmrldh4pqmobxvp","http://www.openwall.com/lists/oss-security/2025/10/16/3"],"products":["apache:traffic_control"],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2025-61581","score":0.00736,"percentile":0.54192,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-9m49-p2j3-c6xm","url":"https://osv.dev/vulnerability/GHSA-9m49-p2j3-c6xm","summary":"Apache Traffic Control has an Inefficient Regular Expression Complexity vulnerability","modified":"2025-11-05T20:49:23Z","packages":[{"ecosystem":"Go","name":"github.com/apache/trafficcontrol/v8","purl":"pkg:golang/github.com/apache/trafficcontrol/v8","ranges":["<=8.0.2"],"fixed":[]}]},{"id":"GO-2025-4033","url":"https://osv.dev/vulnerability/GO-2025-4033","summary":"Apache Traffic Control has an Inefficient Regular Expression Complexity vulnerability in github.com/apache/trafficcontrol","modified":"2026-03-03T04:57:00.438101Z","packages":[{"ecosystem":"Go","name":"github.com/apache/trafficcontrol","purl":"pkg:golang/github.com/apache/trafficcontrol","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/apache/trafficcontrol/v8","purl":"pkg:golang/github.com/apache/trafficcontrol/v8","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}