GHSA-MWR4-5G34-J5CQ gRPC Erlang package's path bindings are overridable by query string and request body

Summary In the HTTP-to-gRPC transcoding layer of the grpc Hex package, query-string and request-body parameters can silently overwrite path-bound fields when building the decoded protobuf request struct. An authenticated attacker who can reach a transcoded endpoint can substitute any path-bound...