Lightning Network Bug disclosed

  • Discovered 3 months ago;
  • fixed in most clients 2 months ago;
  • Now disclosed.

Problem: channel opener opens for X BTC. Counterpart doesn’t check whether channel really contains X. If opener is fraudulent, he could say he opens X but in reality open with Y. It would then show when closing the channel.

www.coindesk.com/a-dangerous-bug-in-bitcoins-lightning-network-has-been-fixed