Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-11720

Gravedad CVSS v4.0:
CRÍTICA
Tipo:
CWE-22 Limitación incorrecta de nombre de ruta a un directorio restringido (Path Traversal)
Fecha de publicación:
29/06/2026
Última modificación:
01/07/2026

Descripción

*** Pendiente de traducción *** A path traversal vulnerability exists in the HTTP tool URL builder of googleapis/mcp-toolbox.<br /> <br /> When constructing downstream API requests, the URL builder substitutes user-controlled pathParams into the configured tool path and parses the resulting string as a relative URL. While it checks that the input does not alter the scheme, host, or user info, it relies on ResolveReference for the final URL resolution. Because dot segments (../) are normalized during this resolution step, an attacker can supply path parameters containing directory traversal sequences to escape the operator-configured path scope. This allows the client to coerce the toolbox into making requests to unintended endpoints on the same target host while forwarding the toolbox&amp;#39;s configured credentials (e.g., bypassing a restricted path like /api/v1/users/{{.id}} to reach /admin/secrets).

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:google:mcp_toolbox_for_databases:*:*:*:*:*:*:*:* 1.3.0 (excluyendo)


Referencias a soluciones, herramientas e información