CVE-2026-48599
Gravedad CVSS v4.0:
ALTA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
15/06/2026
Última modificación:
15/06/2026
Descripción
*** Pendiente de traducción *** Authorization Bypass Through User-Controlled Key vulnerability in elixir-grpc grpc allows authenticated attackers to access or modify resources belonging to other users by smuggling a conflicting value for any path-bound field via the query string or request body.<br />
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In &#39;Elixir.GRPC.Server.Transcode&#39;:map_request/5 (lib/grpc/server/transcode.ex), all three clauses use Map.merge/2 with path bindings as the first argument, giving them the lowest merge precedence. A request such as GET /users/me/profile?user_id=victim (or a POST with {"user_id": "victim"} when body: "*") yields a decoded protobuf struct where the path-bound field carries the attacker-supplied value rather than the router-extracted value. Any handler that uses the path-bound field for authorization, multi-tenancy scoping, or ownership checks is silently bypassed.<br />
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This issue affects grpc from 0.8.0 before 1.0.0.
Impacto
Puntuación base 4.0
7.60
Gravedad 4.0
ALTA