{"cve":"CVE-2020-7608","nvd":{"published":"2020-03-16T20:15:12.860","modified":"2026-06-17T03:25:06.803","status":"Modified","description":"yargs-parser could be tricked into adding or modifying properties of Object.prototype using a \"__proto__\" payload.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":5.3},"cwes":["CWE-1321"],"references":["https://snyk.io/vuln/SNYK-JS-YARGSPARSER-560381","https://snyk.io/vuln/SNYK-JS-YARGSPARSER-560381"],"products":["yargs:yargs-parser"],"source":"nvd","synced_at":"2026-10-19T21:03:08.679916934+00:00"},"epss":{"cve":"CVE-2020-7608","score":0.00514,"percentile":0.43855,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-p9pc-299p-vxgp","url":"https://osv.dev/vulnerability/GHSA-p9pc-299p-vxgp","summary":"yargs-parser Vulnerable to Prototype Pollution","modified":"2026-07-08T06:49:37.726276553Z","packages":[{"ecosystem":"npm","name":"yargs-parser","purl":"pkg:npm/yargs-parser","ranges":[">=6.0.0 <13.1.2"],"fixed":["13.1.2"]},{"ecosystem":"npm","name":"yargs-parser","purl":"pkg:npm/yargs-parser","ranges":[">=14.0.0 <15.0.1"],"fixed":["15.0.1"]},{"ecosystem":"npm","name":"yargs-parser","purl":"pkg:npm/yargs-parser","ranges":[">=16.0.0 <18.1.1"],"fixed":["18.1.1"]},{"ecosystem":"npm","name":"yargs-parser","purl":"pkg:npm/yargs-parser","ranges":["<5.0.1"],"fixed":["5.0.1"]}]}],"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."]}