extcodesize

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Fei
vulnerability

A critical flash loan vulnerability in Fei Protocol's ETH/FEI Uniswap pool allocation mechanism allowed attackers to drain up to 60,000 ETH through price oracle manipulation combined with a bypass of the nonContract modifier using contract constructors. The bug was independently discovered by whitehat Alexander Schlindwein and Fei's security team, earning an $800,000 bounty.

Fei Protocol Alexander Schlindwein ArmorFi Joey Santoro Immunefi OpenZeppelin Uniswap V2 EthBondingCurve.sol EthUniswapPCVDeposit.sol GEKKO
medium.com · Bobface · 17 hours ago · details