          const reject = () => {
            if (replied)
              return;
            replied = true;

            if (reason === undefined) {
              if (localChan === -1)
                reason = CHANNEL_OPEN_FAILURE.RESOURCE_SHORTAGE;
              else
                reason = CHANNEL_OPEN_FAILURE.CONNECT_FAILED;
            }

            proto.channelOpenFail(info.sender, reason, '');
          };
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.