highLogic errorEVM-Solidity
Ethereum Fusaka Upgrade: Malformed blob tx causes Nethermind validators to stop producing blocks
- Payout
- $0
- Protocol
- Ethereum Fusaka Upgrade
- Disclosed
- Oct 13, 2025
- Source
- sherlock
A missing length-equality check in Nethermind's blob transaction validation, combined with unguarded array indexing in the Fusaka V5 blob-serving engine handler, lets an attacker submit a single malformed EIP-4844 blob transaction whose versioned-hash count ex …
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References
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