Decentralized lending giant Aave has effectively halted operations after its core markets reached 100% utilization, rendering users unable to withdraw billions in cryptocurrency. According to DeFi Warhold, this unprecedented situation signifies a complete depletion of available funds, leaving roughly $5 billion in stablecoins USDT and USDC inaccessible. The crisis unfolded on April 18, following a $292 million exploit of the Kelp DAO rsETH bridge, which triggered a bank-run dynamic and saw $6.6 billion exit the protocol within 24 hours. Aave founder Stani Kulechov stated he had no useful comments to offer on the matter.

DeFi Warhold emphasized that 100% utilization across all markets is akin to a complete halt, meaning no liquidity is available for withdrawals, and liquidations cannot be processed, resulting in $3 billion in USDT and $2 billion in USDC being stuck without a clear exit strategy. Analysts warn that the situation will worsen if prices fluctuate, as bad debt will compound without a mechanism to cover it. Natalie Newson, a senior blockchain security researcher at CertiK, concurred that Aave is in severe trouble, noting that 100% utilization not only indicates a lack of liquidity but also means the protocol's self-defense systems are down.

Newson cautioned that the interconnectivity that makes DeFi powerful can also turn a single point of failure into a large-scale disaster. Aave's risk framework had anticipated this scenario, with former Risk Manager Alex Bertomeu-Gilles warning in 2020 that 100% utilization would leave no liquidity, creating a problematic situation for depositors. Technical analyst Duo Nine highlighted that the crisis began when the rsETH exploit led to bad debt, prompting whales like Justin Sun and MEXC exchange to withdraw billions, causing the ETH market to hit 100% utilization and eventually spreading to USDT and USDC pools.