{"id":"CVE-2025-64718","revision":"332628b346734cfc8a6fb604bc7ee100","records":[{"revision":"332628b346734cfc8a6fb604bc7ee100","observedAt":"2026-10-25T03:17:29.935+00:00","statement":{"source":"nvd","id":"CVE-2025-64718","aliases":[],"title":"js-yaml is a JavaScript YAML parser and dumper. In js-yaml before 4.1.1 and 3.14.2, it's possible for an attacker to modify the prototype of the result of a parsed yaml document via prototype pollution (`__proto__`). All users who parse unt…","description":"js-yaml is a JavaScript YAML parser and dumper. In js-yaml before 4.1.1 and 3.14.2, it's possible for an attacker to modify the prototype of the result of a parsed yaml document via prototype pollution (`__proto__`). All users who parse untrusted yaml documents may be impacted. The problem is patched in js-yaml 4.1.1 and 3.14.2. Users can protect against this kind of attack on the server by using `node --disable-proto=delete` or `deno` (in Deno, pollution protection is on by default).","state":0,"publishedAt":"2025-11-13T16:15:57.153+00:00","modifiedAt":"2026-10-07T21:10:00.2+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/nodeca/js-yaml/commit/383665ff4248ec2192d1274e934462bb30426879","https://github.com/nodeca/js-yaml/commit/5278870a17454fe8621dbd8c445c412529525266","https://github.com/nodeca/js-yaml/issues/730#issuecomment-3549635876","https://github.com/nodeca/js-yaml/security/advisories/GHSA-mh29-5h37-fv8m","https://github.com/advisories/GHSA-mh29-5h37-fv8m"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-64718","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-1321"],"productCriteria":["cpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2025-11-13T16:15:57.153","lastModified":"2026-10-07T21:10:00.200"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-64718","identifiers":["CVE-2025-64718"]},"retained":false,"historicalAffected":[]}],"coverage":[]}