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Litecoin Reorg Reverses Invalid MWEB Transactions After Zero-Day ExploitLitecoin said a zero-day vulnerability in its MimbleWimble Extension Block (MWEB) allowed non-updated nodes to validate an invalid transaction, enabling attackers to peg out funds and trigger a DoS attack on mining pools. The network executed a 13-block reorganization to reverse the invalid transactions, while valid transactions remained unaffected. The vulnerability has since been fully patched and the network is operating normally.htt ...