{"id":"CVE-2020-7598","aliases":["GHSA-vh95-rmgr-6w4m"],"url":"https://o3.security/vulnerability/CVE-2020-7598","summary":"Prototype Pollution in minimist","details":"Affected versions of `minimist` are vulnerable to prototype pollution. Arguments are not properly sanitized, allowing an attacker to modify the prototype of `Object`, causing the addition or modification of an existing property that will exist on all objects.  \nParsing the argument `--__proto__.y=Polluted` adds a `y` property with value `Polluted` to all objects. The argument `--__proto__=Polluted` raises and uncaught error and crashes the application.  \nThis is exploitable if attackers have control over the arguments being passed to `minimist`.\n\n\n## Recommendation\n\nUpgrade to versions 0.2.1, 1.2.3 or later.","published":"2020-03-11T23:15:11.917Z","modified":"2026-03-13T22:14:04.796256Z","cvss":{"score":5.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"},"epss":{"score":0.01931,"percentile":0.78448,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"minimist","fixedVersion":"0.2.1"},{"ecosystem":"npm","name":"minimist","fixedVersion":"1.2.3"}],"fix":{"url":"https://github.com/minimistjs/minimist/commit/10bd4cdf49d9686d48214be9d579a9cdfda37c68","label":"minimistjs/minimist@10bd4cd"},"references":[{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html"},{"type":"FIX","url":"https://snyk.io/vuln/SNYK-JS-MINIMIST-559764"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7598"},{"type":"WEB","url":"https://github.com/minimistjs/minimist/commit/10bd4cdf49d9686d48214be9d579a9cdfda37c68"},{"type":"WEB","url":"https://github.com/minimistjs/minimist/commit/38a4d1caead72ef99e824bb420a2528eec03d9ab"},{"type":"WEB","url":"https://github.com/minimistjs/minimist/commit/4cf1354839cb972e38496d35e12f806eea92c11f#diff-a1e0ee62c91705696ddb71aa30ad4f95"},{"type":"WEB","url":"https://github.com/minimistjs/minimist/commit/63e7ed05aa4b1889ec2f3b196426db4500cbda94"},{"type":"PACKAGE","url":"https://github.com/substack/minimist"},{"type":"WEB","url":"https://www.npmjs.com/advisories/1179"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-03-13T22:14:04.796256Z"}}