CVE-2025-66577

{"id": "CVE-2025-66577", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-66577", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-05T18:29:01.280095Z"}}], "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:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "yhirose", "product": "cpp-httplib", "versions": [{"status": "affected", "version": "< 0.27.0"}]}]}], "published": "2025-12-05T19:15:52.540", "references": [{"url": "https://github.com/yhirose/cpp-httplib/commit/ac9ebb0ee333ce8bf13523f487bdfad9518a2aff", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-gfpf-r66f-5mh2", "tags": ["Exploit", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-117"}, {"lang": "en", "value": "CWE-807"}]}], "descriptions": [{"lang": "en", "value": "cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can supply X-Forwarded-For or X-Real-IP headers which get accepted unconditionally by get_client_ip() in docker/main.cc, causing access and error logs (nginx_access_logger / nginx_error_logger) to record spoofed client IPs (log poisoning / audit evasion). This vulnerability is fixed in 0.27.0."}, {"lang": "es", "value": "cpp-httplib es una biblioteca C++11 multiplataforma de un solo archivo de cabecera HTTP/HTTPS. En versiones anteriores a 0.27.0, una vulnerabilidad permite que encabezados HTTP controlados por el atacante influyan en los metadatos visibles para el servidor, el registro y las decisiones de autorizaci\u00f3n. Un atacante puede proporcionar encabezados X-Forwarded-For o X-Real-IP que son aceptados incondicionalmente por get_client_ip() en docker/main.cc, lo que provoca que los registros de acceso y error (nginx_access_logger / nginx_error_logger) registren IPs de cliente falsificadas (envenenamiento de registros / evasi\u00f3n de auditor\u00eda). Esta vulnerabilidad est\u00e1 corregida en 0.27.0."}], "lastModified": "2026-06-17T09:57:03.687", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:yhirose:cpp-httplib:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "833767D4-2EB6-44EB-AF07-8942AF6F6075", "versionEndExcluding": "0.27.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}