CVE-2026-59868

{"id": "CVE-2026-59868", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59868", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-09T13:41:56.104624Z"}}], "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:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nodeca", "product": "js-yaml", "versions": [{"status": "affected", "version": ">= 5.0.0, < 5.2.0"}]}]}], "published": "2026-07-08T16:16:33.270", "references": [{"url": "https://github.com/nodeca/js-yaml/commit/3105455b81dee69e0fd36e09ac0b2ccfdb54adc1", "source": "security-advisories@github.com"}, {"url": "https://github.com/nodeca/js-yaml/releases/tag/5.2.0", "source": "security-advisories@github.com"}, {"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv", "source": "security-advisories@github.com"}, {"url": "https://github.com/nodeca/js-yaml/security/advisories/GHSA-g796-fgmg-93mv", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-407"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-09T15:16:40.150", "sourceIdentifier": "security-advisories@github.com"}