CVE-2025-64718

{"id": "CVE-2025-64718", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2025-11-13T16:15:57.153", "references": [{"url": "https://github.com/nodeca/js-yaml/commit/383665ff4248ec2192d1274e934462bb30426879", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nodeca/js-yaml/commit/5278870a17454fe8621dbd8c445c412529525266", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nodeca/js-yaml/issues/730#issuecomment-3549635876", "tags": ["Issue Tracking"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-mh29-5h37-fv8m", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/advisories/GHSA-mh29-5h37-fv8m", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "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)."}], "lastModified": "2026-02-02T12:54:45.340", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "8CAC7EC0-C471-4811-A77C-2DD5B47C7F46", "versionEndExcluding": "3.14.2"}, {"criteria": "cpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "B56B6076-0668-4DDC-8B01-C48019081B13", "versionEndExcluding": "4.1.1", "versionStartIncluding": "4.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}