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. The incident revolves around rsETH, a liquid restaking token issued by KelpDAO, which relies on a bridge mechanism to move tokens between blockchains. An attacker manipulated this setup by forging a valid 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 quickly contained the risk by freezing rsETH markets and halting new borrowing. The outcome depends on how Kelp handles the shortfall, with estimated losses ranging from $124 million if spread across all rsETH holders to $230 million if isolated to Layer 2 networks. The exploit exposed weaknesses in Kelp's verification process using LayerZero, allowing the attacker to extract value from the system. The incident has raised concerns about the safety of interconnected DeFi infrastructure, leading to a withdrawal of around $6 billion in total value locked from Aave.