{"cve":"CVE-2020-28501","nvd":{"published":"2021-03-22T12:15:13.673","modified":"2026-06-17T03:10:32.923","status":"Modified","description":"This affects the package es6-crawler-detect before 3.1.3. No limitation of user agent string length supplied to regex operators.","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":[],"references":["https://github.com/JefferyHus/es6-crawler-detect/pull/27","https://snyk.io/vuln/SNYK-JS-ES6CRAWLERDETECT-1051529","https://github.com/JefferyHus/es6-crawler-detect/pull/27","https://snyk.io/vuln/SNYK-JS-ES6CRAWLERDETECT-1051529"],"products":["crawlerdetect_project:crawlerdetect"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2020-28501","score":0.01498,"percentile":0.7425,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jxg6-fhwc-9v9c","url":"https://osv.dev/vulnerability/GHSA-jxg6-fhwc-9v9c","summary":"Regular Expression Denial of Service (ReDoS) in es6-crawler-detect","modified":"2026-03-13T22:11:35.700627Z","packages":[{"ecosystem":"npm","name":"es6-crawler-detect","purl":"pkg:npm/es6-crawler-detect","ranges":["<3.1.3"],"fixed":["3.1.3"]}]}],"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."]}