CVE-2025-23167

{"id": "CVE-2025-23167", "cveTags": [], "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 3.9}]}, "published": "2025-05-19T02:15:17.583", "references": [{"url": "https://nodejs.org/en/blog/vulnerability/may-2025-security-releases", "source": "[email protected]"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-444"}]}], "descriptions": [{"lang": "en", "value": "A flaw in Node.js 20's HTTP parser allows improper termination of HTTP/1 headers using `\\r\\n\\rX` instead of the required `\\r\\n\\r\\n`.\nThis inconsistency enables request smuggling, allowing attackers to bypass proxy-based access controls and submit unauthorized requests.\n\nThe issue was resolved by upgrading `llhttp` to version 9, which enforces correct header termination.\n\nImpact:\n* This vulnerability affects only Node.js 20.x users prior to the `llhttp` v9 upgrade."}, {"lang": "es", "value": "Una falla en el analizador HTTP de Node.js 20 permite la terminaci\u00f3n incorrecta de los encabezados HTTP/1 mediante `\\r\\n\\rX` en lugar del `\\r\\n\\r\\n` requerido. Esta inconsistencia facilita el contrabando de solicitudes, lo que permite a los atacantes eludir los controles de acceso basados en proxy y enviar solicitudes no autorizadas. El problema se solucion\u00f3 actualizando `llhttp` a la versi\u00f3n 9, que aplica la terminaci\u00f3n correcta de los encabezados. Impacto: * Esta vulnerabilidad afecta solo a los usuarios de Node.js 20.x anteriores a la actualizaci\u00f3n a `llhttp` v9."}], "lastModified": "2025-05-19T16:15:27.317", "sourceIdentifier": "[email protected]"}