CVE-2026-45135

{"id": "CVE-2026-45135", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45135", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-23T18:30:00.592778Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "caddyserver", "product": "caddy", "versions": [{"status": "affected", "version": ">= 2.7.0, < 2.11.3"}]}]}], "published": "2026-06-23T18:17:52.343", "references": [{"url": "https://github.com/caddyserver/caddy/security/advisories/GHSA-m675-2p33-xv9g", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/caddyserver/caddy/security/advisories/GHSA-m675-2p33-xv9g", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-176"}, {"lang": "en", "value": "CWE-178"}]}], "descriptions": [{"lang": "en", "value": "Caddy is an extensible server platform that uses TLS by default. From 2.7.0 until 2.11.3, the FastCGI transport's splitPos() in modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead Caddy's FastCGI splitting into treating a non-.php (or other configured split_path extension) file as a script. In any deployment where the attacker can place content into a file served via FastCGI (uploads, file storage, etc.), this can be escalated to remote code execution by crafting a URL whose path triggers either flaw. This vulnerability is fixed in 2.11.3."}, {"lang": "es", "value": "Caddy es una plataforma de servidor extensible que usa TLS por defecto. Desde la 2.7.0 hasta la 2.11.3, la funci\u00f3n splitPos() del transporte FastCGI en modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go hace un uso incorrecto de golang.org/x/text/search con search.IgnoreCase cuando la ruta de la solicitud contiene un byte no ASCII. Dos fallos distintos en esa alternativa permiten a un atacante enga\u00f1ar la divisi\u00f3n FastCGI de Caddy para que trate un archivo que no es .php (u otra extensi\u00f3n de split_path configurada) como un script. En cualquier despliegue donde el atacante pueda colocar contenido en un archivo servido a trav\u00e9s de FastCGI (cargas, almacenamiento de archivos, etc.), esto puede escalarse a ejecuci\u00f3n remota de c\u00f3digo al crear una URL cuya ruta active cualquiera de los fallos. Esta vulnerabilidad est\u00e1 corregida en la 2.11.3."}], "lastModified": "2026-10-25T23:10:00.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:caddyserver:caddy:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "929EBC65-CE84-403E-BF54-03AA66C3B09E", "versionEndExcluding": "2.11.3", "versionStartIncluding": "2.7.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}