BNB Smart Chain released BSC-Reth v0.1.4-hotfix to address a vulnerability discovered on November 4, 2026, in Reth’s legacy trie code. The bug could cause incorrect state-root calculations, leading to node disagreements and synchronization failures. The underlying flaw was fixed in Reth pull request #28264, merged on November 3. There is no evidence that the vulnerability was exploited or that funds were affected. Validators, MEV builders, full nodes, and sentry nodes should upgrade and restart their nodes as soon as possible; no database migration or hard fork is required, and opBNB is unaffected.
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