CVE-2026-25890

{"id": "CVE-2026-25890", "cveTags": [], "metrics": {"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:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "published": "2026-02-09T22:16:03.873", "references": [{"url": "https://github.com/filebrowser/filebrowser/commit/489af403a19057f6b6b4b1dc0e48cbb26a202ef9", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/filebrowser/filebrowser/releases/tag/v2.57.1", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4mh3-h929-w968", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-706"}, {"lang": "en", "value": "CWE-863"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to 2.57.1, an authenticated user can bypass the application's \"Disallow\" file path rules by modifying the request URL. By adding multiple slashes (e.g., //private/) to the path, the authorization check fails to match the rule, while the underlying filesystem resolves the path correctly, granting unauthorized access to restricted files. This vulnerability is fixed in 2.57.1."}, {"lang": "es", "value": "Navegador de Archivos proporciona una interfaz de gesti\u00f3n de archivos dentro de un directorio especificado y se puede utilizar para subir, eliminar, previsualizar, renombrar y editar archivos. Antes de la versi\u00f3n 2.57.1, un usuario autenticado puede eludir las reglas de ruta de archivo 'Disallow' de la aplicaci\u00f3n modificando la URL de la solicitud. Al a\u00f1adir m\u00faltiples barras (por ejemplo, //private/) a la ruta, la comprobaci\u00f3n de autorizaci\u00f3n no logra coincidir con la regla, mientras que el sistema de archivos subyacente resuelve la ruta correctamente, otorgando acceso no autorizado a archivos restringidos. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 2.57.1."}], "lastModified": "2026-02-20T20:31:02.080", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "814A9A1C-C2FE-406B-AD51-62B4A826C6AF", "versionEndExcluding": "2.57.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}