CVE-2026-33745

{"id": "CVE-2026-33745", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.2}]}, "published": "2026-03-27T01:16:21.167", "references": [{"url": "https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-6hrp-7fq9-3qv2", "source": "security-advisories@github.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.39.0, the cpp-httplib HTTP client forwards stored Basic Auth, Bearer Token, and Digest Auth credentials to arbitrary hosts when following cross-origin HTTP redirects (301/302/307/308). A malicious or compromised server can redirect the client to an attacker-controlled host, which then receives the plaintext credentials in the `Authorization` header. Version 0.39.0 fixes the issue."}, {"lang": "es", "value": "cpp-httplib es una biblioteca HTTP/HTTPS multiplataforma de un solo archivo y solo de encabezado C++11. Antes de 0.39.0, el cliente HTTP cpp-httplib reenv\u00eda las credenciales almacenadas de Basic Auth, Bearer Token y Digest Auth a hosts arbitrarios al seguir redirecciones HTTP de origen cruzado (301/302/307/308). Un servidor malicioso o comprometido puede redirigir al cliente a un host controlado por el atacante, que luego recibe las credenciales en texto plano en el encabezado 'Authorization'. La versi\u00f3n 0.39.0 corrige el problema."}], "lastModified": "2026-03-30T13:26:29.793", "sourceIdentifier": "security-advisories@github.com"}