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Reth stories

Nov 5, 2026

Ethereum software bug triggers emergency fixes across major layer-2 networks

A flaw in the Reth execution client that could allow crafted transactions to produce incorrect blockchain state calculations prompted coordinated emergency patches across Ethereum infrastructure including Base, BNB Chain, and other layer-2 networks.

Nov 5, 2026·4 sources

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Top claims

▪Georgios Konstantopoulos, chief technology officer at Paradigm, said a flaw in execution client Reth's legacy state-root calculation system could return incorrect cryptographic hashes when processing specific smart contract storage configurations
▪Cross-chain messaging protocol LayerZero temporarily paused select transfer routes as a precautionary measure while developers evaluated operational risks related to the Reth state-root software defect
▪The Tempo development team discovered the Reth state-root software bug through automated security testing known as fuzzing

Topics

Crypto security Ethereum Layer 2s & scaling Blockchain security & risks Ethereum Blockchain nodes & clients

Related entities

GitHub Ethereum OP Stack