    private boolean pull(ConsoleOutputStreamConsumer outputStreamConsumer) {
        CommandLine hg = hg("pull", "-b", branch, "--config", String.format("paths.default=%s", url));
        return execute(hg, outputStreamConsumer) == 0;
    }
The software constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.