Coalition Unveils Technical Proposal to Mitigate Aave Token Exploit

The aftermath of a $300 million exploit doesn't typically come with a straightforward repair guide. However, the group leading the Kelp DAO recovery effort is working to create one. DeFi United, a coalition of multiple blockchain projects and crypto ecosystem individuals, has devised a detailed, step-by-step plan to restore the backing of rsETH after this month's Kelp DAO hack, which released over 116,000 unaccounted tokens into DeFi lending markets. The proposed plan, shared on Aave's official X account, resembles a coordinated damage control operation, relying heavily on Aave's infrastructure to rectify the situation and stabilize the markets. The security breach occurred on April 18, when an attacker exploited a vulnerability in rsETH's bridge, forging a message that appeared legitimate and tricking the Ethereum side of the system into releasing 116,500 rsETH without proper backing. These tokens were then dispersed across multiple wallets and utilized across DeFi, with a significant portion used as collateral on Aave and other lending platforms. As a result, protocols like Aave found themselves holding collateral that was temporarily unbacked. According to the proposal, most of the exploited funds remain active, with approximately 107,000 of the original 116,500 rsETH still tied up in active positions across Aave and Compound. This presents two pressing issues: restoring the backing of rsETH and unwinding the loans created using the extra tokens. DeFi United's proposal aims to address both issues simultaneously. To restore the backing, the group has secured sufficient ETH commitments to fully re-collateralize rsETH, which will be fed back into the system in stages. Meanwhile, attention will shift to the lending markets, where the plan is to carefully unwind the damage. A key aspect of this involves dealing with the positions the attacker opened on Aave, which are essentially loans backed by rsETH that should not have existed. Rather than allowing these loans to collapse chaotically, the proposal suggests a more controlled approach to closing them out. By temporarily adjusting the valuation of rsETH within the system, those bad positions can be liquidated or closed more smoothly, enabling the recovery of underlying assets like ETH. The proposal estimates that this could free up around 13,000 ETH from Aave alone. Once this collateral is recovered, it will be converted into ETH and used to cover the shortfall created by the exploit, effectively filling the hole left behind. Although the process carries risks, including the need for governance approvals across multiple chains and the successful deployment of committed funds, the plan represents a more coordinated response than DeFi has often managed in the past. If executed as intended, the ultimate goal is to fully restore the backing of rsETH and stabilize all affected markets.