Aave, the leading lending protocol, drew attention to its liquidity profile. Recent research showed major Aave vaults were at 100% utilization, meaning a virtual inability to withdraw funds.
Aave may be facing a liquidity crisis, as major lending vaults are at 100% utilization. All funds are borrowed, and liquidity providers may not withdraw their collateral.
The most affected vault is for WETH, the most commonly used version of wrapped ETH tokens. Stablecoin vaults are also getting depleted.
Aave 的 Ethereum Core 市场 WETH 利用率都被拉满 100% 了
存入的 WETH 都被借光了
同样几乎被拉满的还有 Core 市场的 USDT、USDC 和 Plasma 的 USDT0🧐 https://t.co/LzmFA3qe3m pic.twitter.com/v0Z7JOZUXX
— defioasis.eth (@defioasis) April 19, 2026
WETH is a relatively liquid asset that can be easily traded on other DEX destinations. The main reason for the maxed-out vaults is a peak outflow from Aave, due to exposure to the KelpDAO hack.
Aave experiences peak outflow
Aave experienced the third-largest outflow in history, with $5B moved through the Ethereum network. The protocol is still checking for bad debt, which may exacerbate the losses from the KelpDAO hack. According to early estimates, Aave may carry up to $196M in bad debt, due to the usage of illiquid rsETH used to borrow WETH. Part of the outflow may come from the exploiters taking out WETH to liquidate and disguise funds.
The outflows diminished the total value locked on Aave to $17.5B, down from a recent peak above $25B. The recent KelpDAO hack showed that Aave did not react automatically to all market-shaking events, but the results depended on exposure.
As the exposure to KelpDAO’s rsETH threatened liquidity, users turned to safer assets like WETH and stablecoins. The recent incident shows that DeFi lending is at risk due to the increase in large Web3 hacks. The attacks against Drift Protocol and KelpDAO in less than a month put WEB3 security at the forefront, especially in cases of significant liquidity accumulation.
The effects on Aave may affect DeFi as a whole, as the lending protocol was the main venue for reliable vaults. The recent outflows signal that DeFi as a whole may be at risk, as it concentrates on major protocols. As Cryptopolitan reported, a DeFi contagion may spread to L2 and other protocols.
Aave liquidity declined even before the KelpDAO hack
In the past month, even without the recent outflows, Aave liquidity declined by around 25% or over $20B. Stablecoin liquidity is also down by 35%, and borrowing is down 10%.
AAVE tokens were in decline for the past quarter, sinking from a local high of $157. Following the outflows, AAVE crashed from $112 down to $92.
At the same time, Aave proved relatively resilient as the utilization was only peaking in a handful of markets. The platform carries 215 lending vaults or markets, with an average utilization rate of 37%.
DeFi lending usually works better during bull markets, but the latest outflows may test Aave’s resilience. Even with relatively stable ETH prices above $2,300, the bad debt and rapid outflows will put pressure on the protocol.