A critical flaw in the Reth execution client prompted patches for Reth, Optimism, Base, and Tempo on Nov. 5. The defect in the legacy state-root calculation could cause nodes to disagree when processing certain smart-contract storage configurations. Layer 1 withdrawals were unaffected, no theft of funds was reported, and Base users’ funds were confirmed as safe. Reth 2.10.0, OP Reth 2.8.1, and Base 1.5.3 were released to address the bug, while LayerZero temporarily restricted certain cross-chain transfer routes as a precaution.
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