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BNB Chain Issues Hotfix for Reth Bug Affecting EVM Networks

BNB Chain Issues Hotfix for Reth Bug Affecting EVM Networks

First seen 8 Nov 2026, 08:46 UTC • •
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ThreatCluster AI
ThreatCluster •November 8, 2026 at 08:47 UTC
  • •BNB Chain and Base released hotfixes for a Reth execution client bug affecting EVM networks.
  • •The vulnerability could lead to incorrect blockchain state calculations but has limited impact on BNB Chain.
  • •Node operators are urged to install the hotfix and restart their nodes to mitigate risks.

BNB Chain and Base have issued security updates in response to a bug in the Reth Ethereum execution client that could lead to incorrect blockchain state calculations. The vulnerability affects Ethereum-compatible networks, with BNB Chain confirming that its opBNB network does not utilize op-reth, limiting the impact. Base identified the issue on November 4 and released a patch (version 1.5.3) on November 5, ensuring no disruption to users. BNB Chain has since urged BSC-Reth node operators to install a hotfix (v0.1.4-hotfix) and restart their nodes. The hotfix addresses the state-root calculation issue without requiring database migration or a hard fork. BNB Chain also promoted its Red Alarm security tool to help users identify risky applications. The situation is being monitored closely, and users are advised to take action to secure their nodes.

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Timeline

2026-11-04
Base identifies Reth bug
Base discovered a bug in the Reth execution client that could cause incorrect state root calculations.
Crypto.News
2026-11-05
Base releases patch
Base released version 1.5.3 to address the Reth bug, confirming no user impact.
Crypto.News
2026-11-06
BNB Chain acknowledges Reth risk
BNB Chain confirmed the security risk from Reth but stated its opBNB network is unaffected.
Crypto.News
2026-11-07
BNB Chain promotes Red Alarm tool
BNB Chain urged BSC-Reth node operators to install a hotfix and highlighted the Red Alarm security tool.
Crypto.News

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Common questions

What should BSC-Reth node operators do?
BSC-Reth node operators should install the v0.1.4-hotfix and restart their nodes to address the state-root calculation issue.
Is there any user impact from the Reth bug?
No, both BNB Chain and Base confirmed that user funds and operations were not affected by the Reth bug.
What is the Red Alarm tool?
Red Alarm is a security scanner that helps users identify risky decentralized applications and smart contracts before interacting with them.