void NavigationRequest::HandleInterfaceDisconnection(
    mojom::NavigationClientAssociatedPtr* navigation_client,
    base::OnceClosure error_handler) {
  navigation_client->set_connection_error_handler(std::move(error_handler));
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.