Overview
- Litecoin confirmed a previously unknown bug hit major mining pools and triggered a deep chain split that was reversed with a 13-block reorganization.
- The reorg removed invalid transfers tied to MWEB, a privacy feature that runs in a parallel block to handle deposits and withdrawals.
- Developers released a fix, and the network is stable with valid transfers from the affected window still considered final.
- Attackers tried double-spends against cross-chain swap services during the fork window, and NEAR Intents reported exposure of about $600,000.
- The flaw let non-updated miners accept an invalid MWEB peg-out that could route coins to third-party exchanges, underscoring the need for fast node updates across pools.