CVE-2025-47908

{"id": "CVE-2025-47908", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "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": "2025-08-06T21:15:29.313", "references": [{"url": "https://github.com/rs/cors/issues/170", "source": "security@golang.org"}, {"url": "https://github.com/rs/cors/pull/171", "source": "security@golang.org"}, {"url": "https://pkg.go.dev/vuln/GO-2024-2883", "source": "security@golang.org"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service."}, {"lang": "es", "value": "El middleware genera una cantidad prohibitiva de asignaciones de mont\u00f3n al procesar solicitudes preflight maliciosas que incluyen un encabezado ACRH (Access-Control-Request-Headers) cuyo valor contiene muchas comas. Los atacantes pueden abusar de este comportamiento para generar una carga excesiva en el middleware/servidor con el fin de provocar una denegaci\u00f3n de servicio."}], "lastModified": "2025-08-07T21:26:37.453", "sourceIdentifier": "security@golang.org"}