{"cve":"CVE-2020-7661","nvd":{"published":"2020-06-04T18:15:15.013","modified":"2026-06-17T03:25:13.177","status":"Modified","description":"all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service.","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-400"],"references":["https://github.com/kevva/url-regex/issues/70","https://snyk.io/vuln/SNYK-JS-URLREGEX-569472","https://github.com/kevva/url-regex/issues/70","https://snyk.io/vuln/SNYK-JS-URLREGEX-569472"],"products":["url-regex_project:url-regex"],"source":"nvd","synced_at":"2026-10-19T21:05:42.039641217+00:00"},"epss":{"cve":"CVE-2020-7661","score":0.0267,"percentile":0.85759,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-v4rh-8p82-6h5w","url":"https://osv.dev/vulnerability/GHSA-v4rh-8p82-6h5w","summary":"Regular expression denial of service in url-regex","modified":"2026-03-13T21:56:41.415393Z","packages":[{"ecosystem":"npm","name":"url-regex","purl":"pkg:npm/url-regex","ranges":["<=5.0.0"],"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."]}