Decentralized lending platform Aave has effectively come to a standstill after its core markets reached 100% utilization, rendering users unable to withdraw billions of dollars in cryptocurrency. DeFi expert Warhold explains that this situation signifies a complete lack of liquidity, making it impossible for users to access their assets. Approximately $5 billion in stablecoins, including USDT and USDC, are currently locked within the protocol, which lacks the necessary 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, depositing it into Aave as collateral to borrow nearly $200 million in WETH.
As news of the 'bad debt' spread, a bank-run scenario ensued, resulting in $6.6 billion exiting the protocol within 24 hours. When approached for comment, Aave founder Stani Kulechov stated, 'I do not have anything useful to say.' Warhold notes that 100% utilization across all markets is equivalent to a complete halt, as it signifies no available liquidity for withdrawals, and liquidations cannot be processed. Consequently, $3 billion in USDT and $2 billion in USDC are stuck with no clear exit strategy.
The situation is further complicated by the fact that if prices fluctuate, bad debt compounds without a mechanism to cover it. According to Warhold, this is the worst possible scenario for a lending protocol, as the inability to execute liquidations leaves the protocol vulnerable to further bad debt.
Natalie Newson, a senior blockchain security researcher at CertiK, asserts that Aave is in serious trouble, emphasizing that 100% utilization not only indicates a lack of liquidity but also means the protocol's self-defense mechanisms are inactive. Liquidations require liquidity to function; without it, undercollateralized positions cannot be closed, and bad debt continues to accumulate, leaving the protocol in a situation from which it cannot recover without external assistance.
Newson agrees with Warhold that innocent parties are now shouldering the risks and highlights that the interconnectivity that makes DeFi powerful also turns a single point of failure into a large-scale disaster. Aave's risk framework had anticipated the possibility of 100% utilization, with former Aave Risk Manager Alex Bertomeu-Gilles stating 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 point out that Aave had reached 100% utilization, noting that when the rsETH exploit occurred and AAVE incurred bad debt, major players like Justin Sun and MEXC exchange withdrew billions from AAVE, initially causing the ETH market to hit 100% utilization. This soon spread to USDT and USDC pools as over $6 billion in assets left the protocol within hours, resulting in these markets also becoming stuck with locked funds.