Litecoin mocks critics after 13-block reorg
A 13-block reorg on April 25 reversed invalid transactions after an exploit of Litecoin’s MWEB privacy layer; the project’s official X account told critics to “stay on the shallow end.”
On April 25, 2026, Litecoin’s network underwent a 13-block reorganization that removed roughly 32 minutes of chain history after an attack that targeted the Mimblewimble Extension Blocks (MWEB) privacy layer.
The Litecoin team described the incident as a denial-of-service exploit that used a consensus bug to cause non-updated nodes to accept invalid MWEB transactions. Attackers moved coins by pegging out to third-party decentralized exchanges, and major mining pools coordinated a defensive reorg over about three hours to reverse those transactions.
Repository commits show core developers patched the MWEB vulnerability privately between March 19 and March 26, 2026, 37 days before the April 25 incident. The fix was not enforced as a mandatory upgrade, leaving a window in which non-updated nodes remained vulnerable.
Cross-chain bridge NEAR Intents reported roughly $600,000 of exposure tied to the event. Litecoin’s team posted that the bug is patched, that no valid transactions were lost on the main chain, and that the canonical chain stabilized once miners adopted the patched client.
The incident prompted questions about disclosure and coordination. Developers and node operators pointed to the private patch and the lack of broad upgrade enforcement as reasons some operators remained exposed.
On April 26, the project’s official X account posted: “Some of you know little to nothing about PoW, hash rate, uptime, reorgs, and miner/chain relationships and it shows. Stay on the shallow end of the pool. You’re safer over there.” The reply drew hundreds of hostile responses calling the tone unprofessional and immature.
The account has previously posted blunt messages, including a September 2025 post that referenced firing an “abrasive intern.” Other networks engaged in the exchange; one responded, “How’s your weekend going little buddy?”
Litecoin maintains the MWEB vulnerability has been fixed and that the main chain remains intact. Network operators reported stabilization after miners updated to the patched client.
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