CVE-2026-42551

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{"affected": [{"affectedData": [{"product": "core", "vendor": "flightphp", "versions": [{"status": "affected", "version": "< 3.18.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod() unconditionally honors the X-HTTP-Method-Override header and the $_REQUEST['_method'] parameter on any HTTP verb (including safe verbs such as GET), with no opt-in and no whitelist of permitted target methods. A GET request can silently become a DELETE or PUT, enabling CSRF escalation against destructive endpoints, bypass of middleware gated on unsafe verbs, and cache poisoning between CDN and origin. This vulnerability is fixed in 3.18.1."}, {"lang": "es", "value": "Flight es un micro-framework extensible para PHP. Antes de la versi\u00f3n 3.18.1, Request::getMethod() honra incondicionalmente el encabezado X-HTTP-Method-Override y el par\u00e1metro $_REQUEST[\u2019_method\u2019] en cualquier verbo HTTP (incluyendo verbos seguros como GET), sin opci\u00f3n de activaci\u00f3n y sin lista blanca de m\u00e9todos objetivo permitidos. Una solicitud GET puede convertirse silenciosamente en un DELETE o PUT, lo que permite la escalada de CSRF contra puntos finales destructivos, eludir middleware restringido a verbos inseguros y el envenenamiento de cach\u00e9 entre CDN y origen. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 3.18.1."}], "id": "CVE-2026-42551", "lastModified": "2026-10-26T14:10:00.130", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42551", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-14T12:49:44.246541Z", "version": "2.0.3"}}]}, "published": "2026-05-13T20:16:22.190", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/flightphp/core/security/advisories/GHSA-vxrr-w42w-w76g"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/flightphp/core/security/advisories/GHSA-vxrr-w42w-w76g"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-436"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.18.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "core", "source": "cna", "vendor": "flightphp"}, "product": "core", "vendor": "flightphp"}], "created": "2026-05-13T21:45:05.335518+00:00", "updated": "2026-05-14T14:33:38.195684+00:00", "vendors": ["flightphp", "flightphp$PRODUCT$core"]}