{"cve":"CVE-2021-3795","nvd":{"published":"2021-09-15T17:15:10.577","modified":"2026-06-17T04:05:47.033","status":"Modified","description":"semver-regex is vulnerable to Inefficient Regular Expression Complexity","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://github.com/sindresorhus/semver-regex/commit/11c66245f4e1976dccc52977ed183696a21a3fd7","https://huntr.dev/bounties/006624e3-35ac-448f-aab9-7b5183f30e28","https://github.com/sindresorhus/semver-regex/commit/11c66245f4e1976dccc52977ed183696a21a3fd7","https://huntr.dev/bounties/006624e3-35ac-448f-aab9-7b5183f30e28"],"products":["semver-regex_project:semver-regex"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-3795","score":0.01517,"percentile":0.74554,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-44c6-4v22-4mhx","url":"https://osv.dev/vulnerability/GHSA-44c6-4v22-4mhx","summary":"semver-regex Regular Expression Denial of Service (ReDOS)","modified":"2026-09-10T03:49:27.232553772Z","packages":[{"ecosystem":"npm","name":"semver-regex","purl":"pkg:npm/semver-regex","ranges":["<3.1.3"],"fixed":["3.1.3"]},{"ecosystem":"npm","name":"semver-regex","purl":"pkg:npm/semver-regex","ranges":[">=4.0.0 <4.0.1"],"fixed":["4.0.1"]}]}],"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."]}