{"id":"CVE-2026-59868","revision":"c9835adaa30540818686e2f0e83fc204","records":[{"revision":"c9835adaa30540818686e2f0e83fc204","observedAt":"2026-10-25T14:19:22.811+00:00","statement":{"source":"nvd","id":"CVE-2026-59868","aliases":[],"title":"js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each…","description":"js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in version 5.2.0.","state":0,"publishedAt":"2026-07-08T16:16:33.27+00:00","modifiedAt":"2026-07-13T15:06:34.173+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:N/A:L","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1","https://github.com/nodeca/js-yaml/releases/tag/5.2.0","https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59868","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-407","CWE-770"],"productCriteria":["cpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-07-08T16:16:33.270","lastModified":"2026-07-13T15:06:34.173"},"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-2026-59868","identifiers":["CVE-2026-59868"]},"retained":false,"historicalAffected":[]}],"coverage":[]}