CVE-2026-34043

{"id": "CVE-2026-34043", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-03-31T03:15:58.400", "references": [{"url": "https://github.com/yahoo/serialize-javascript/commit/f147e90269b58bb6e539cfdf3d0e20d6ad14204b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yahoo/serialize-javascript/releases/tag/v7.0.5", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-qj8w-gfj5-8c6v", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-834"}]}], "descriptions": [{"lang": "en", "value": "Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted \"array-like\" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5."}, {"lang": "es", "value": "Serializar JavaScript a un superconjunto de JSON que incluye expresiones regulares y funciones. Antes de la versi\u00f3n 7.0.5, existe una vulnerabilidad de denegaci\u00f3n de servicio (DoS) causada por el agotamiento de la CPU. Al serializar un objeto 'similar a un array' especialmente dise\u00f1ado (un objeto que hereda de Array.prototype pero tiene una propiedad 'length' muy grande), el proceso entra en un bucle intensivo que consume el 100% de la CPU y se cuelga indefinidamente. Este problema ha sido parcheado en la versi\u00f3n 7.0.5."}], "lastModified": "2026-04-03T16:53:52.573", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:yahoo:serialize:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DED6E0E1-E4EB-4B38-918C-0429510F4FAC", "versionEndExcluding": "7.0.5"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}