{"cve":"CVE-2020-36830","nvd":{"published":"2024-09-02T18:15:20.967","modified":"2026-06-17T03:16:16.733","status":"Analyzed","description":"A vulnerability was found in nescalante urlregex up to 0.5.0 and classified as problematic. This issue affects some unknown processing of the file index.js of the component Backtracking. The manipulation leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.5.1 is able to address this issue. The identifier of the patch is e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9. It is recommended to upgrade the affected component.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":5.3},"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://github.com/nescalante/urlregex/commit/e5a085afe6abfaea1d1a78f54c45af9ef43ca1f9","https://github.com/nescalante/urlregex/pull/8","https://github.com/nescalante/urlregex/releases/tag/v0.5.1","https://vuldb.com/?ctiid.276269","https://vuldb.com/?id.276269"],"products":["nescalante:urlregex"],"source":"nvd","synced_at":"2026-10-19T21:54:16.205165117+00:00"},"epss":{"cve":"CVE-2020-36830","score":0.00802,"percentile":0.56653,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rw72-v6c7-hf9r","url":"https://osv.dev/vulnerability/GHSA-rw72-v6c7-hf9r","summary":"ReDoS in urlregex","modified":"2024-09-03T21:42:14.369672Z","packages":[{"ecosystem":"npm","name":"urlregex","purl":"pkg:npm/urlregex","ranges":["<0.5.1"],"fixed":["0.5.1"]}]}],"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."]}