{"cve":"CVE-2020-7767","nvd":{"published":"2020-11-11T11:15:10.820","modified":"2026-06-17T03:25:24.627","status":"Modified","description":"All versions of package express-validators are vulnerable to Regular Expression Denial of Service (ReDoS) when validating specifically-crafted invalid urls.","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:L","score":5.3},"cwes":["CWE-400"],"references":["https://snyk.io/vuln/SNYK-JS-EXPRESSVALIDATORS-1017404","https://snyk.io/vuln/SNYK-JS-EXPRESSVALIDATORS-1017404"],"products":["express-validators_project:express-validators"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-7767","score":0.0164,"percentile":0.76384,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cf2x-rqc8-grfq","url":"https://osv.dev/vulnerability/GHSA-cf2x-rqc8-grfq","summary":"Regular expression deinal of service in express-validators","modified":"2023-11-08T04:04:09.360531Z","packages":[{"ecosystem":"npm","name":"express-validators","purl":"pkg:npm/express-validators","ranges":["<=1.0.4"],"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."]}