Aave Lending Protocol Faces Crisis as Core Markets Reach 100% Utilization

Decentralized lending platform Aave has effectively come to a standstill after all its primary lending protocols exhausted their available funds, rendering users unable to withdraw billions of dollars in cryptocurrency. According to DeFi Warhold, this 100% utilization signifies a critical issue, with approximately $5 billion in stablecoins USDT and USDC now locked due to the protocol's lack of liquidity to facilitate payouts. The crisis unfolded on April 18 following a $292 million exploit of the Kelp DAO rsETH bridge, where an attacker utilized forged cross-chain messages to mint unbacked rsETH, which was then used as collateral to borrow nearly $200 million in WETH on Aave. As news of the 'bad debt' spread, a bank-run scenario ensued, prompting a total of $6.6 billion to exit the protocol within 24 hours. Aave founder Stani Kulechov declined to comment on the crisis, stating he had nothing useful to add. DeFi Warhold emphasized that 100% utilization across all markets simultaneously is akin to a complete halt, indicating no available liquidity for withdrawals and an inability to process liquidations, resulting in $3 billion in USDT and $2 billion in USDC being stuck without a clear exit strategy. Furthermore, the analyst warned that if market prices fluctuate, the bad debt will compound with no mechanism in place to mitigate it, placing the protocol in the worst possible situation. Natalie Newson, a senior blockchain security researcher at CertiK, concurred that Aave is in dire straits, highlighting that 100% utilization not only signifies a lack of liquidity but also means the protocol's self-defense mechanisms are inoperable. Newson cautioned that liquidations require liquidity to function and that without it, undercollateralized positions cannot be closed, leading to a perpetual accumulation of bad debt and leaving the protocol vulnerable to collapse without external intervention. The researcher noted that Aave's predicament serves as a stark reminder of the risks associated with the interconnectedness of DeFi systems, where a single point of failure can trigger a large-scale disaster. It has been revealed that Aave's risk framework had anticipated the possibility of 100% utilization, with former Aave Risk Manager Alex Bertomeu-Gilles having stated in 2020 that at this level, 'no liquidity is left' and the situation becomes 'problematic' as depositors are unable to withdraw their funds. Technical analyst Duo Nine was the first to identify that Aave had reached 100% utilization, noting that the crisis began when whales, including Justin Sun and MEXC exchange, withdrew billions from AAVE following the rsETH exploit, initially causing the ETH market to hit 100% utilization before spreading to USDT and USDC pools as over $6 billion in assets exited the protocol within hours.