Aave Faces Potential Losses of Up to $230 Million Following Kelp DAO Bridge Exploit

A recent exploit of the Kelp DAO and LayerZero bridge has put lending protocol Aave at risk of losing up to $230 million, contingent upon the resolution of the situation. The incident revolves around rsETH, a liquid restaking token issued by KelpDAO, which relies on a bridge mechanism to transfer tokens between blockchains. An attacker exploited this setup by creating a forged transfer message, resulting in the creation of new tokens without backing. The attacker then deposited these tokens into Aave as collateral and borrowed approximately $190 million in ETH and related assets. Aave has taken steps to mitigate the risk, including freezing rsETH markets and halting new borrowing against the asset. The outcome now depends on how Kelp handles the shortfall, with potential losses ranging from $124 million to $230 million. The exploit was made possible by weaknesses in Kelp's verification process for cross-chain messages using LayerZero. The incident has raised concerns about the safety of interconnected DeFi infrastructure and has led to a significant withdrawal of total value locked from Aave.