Aave experienced significant stress on April 19 after reports linked to rsETH triggered rapid Ethereum withdrawals. Users rushed to exit positions, pushing ETH utilization on the protocol to 100% and exhausting available liquidity.
The sudden movement followed concerns about a potential exploit affecting collateral integrity within the decentralized lending ecosystem and broader DeFi stability.
An exploit involving an attacker using rsETH for collateralizing their debt was reported to have led to bad debt on Aave. In response, Aave froze rsETH and wrapped rsETH markets across all V3 deployments. The freeze halted new deposits and borrowing tied to these assets while investigations into the incident began.
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Aave Utilization Spikes to 100% Liquidity Strain
Aave Guardian initiated an emergency freeze covering all affected markets to prevent further risk escalation. Existing user positions remained unchanged, ensuring no forced liquidations or adjustments occurred during the intervention. The measures only impacted new deposits and borrowing of these assets.
The exploit, tied to Kelp DAO infrastructure, intensified pressure across decentralized finance markets. Reports suggest over $5.4 billion worth of ETH exited Aave within a short period, marking one of the largest liquidity outflows in DeFi history. The scale of withdrawals reflects declining confidence in collateral safety and protocol resilience.
High-profile participants contributed to the outflows, including Justin Sun, who withdrew approximately 65,584 ETH valued at nearly $154 million. This action shows that confidence is dwindling within the DeFi network, causing more withdrawals. Aave has now exhausted its liquidity capacity since the utilization rate for ETH on Aave has reached its ceiling at 100%.
Investigation and Risk Assessment Continue
Kelp DAO responded by pausing rsETH contracts across mainnet and multiple Layer 2 networks after detecting suspicious cross-chain activity. The team is working with infrastructure providers, auditors, and security firms to identify the underlying cause of the exploit.
Ongoing forensic investigations suggest two possible failure scenarios involving either source-side key compromise or verifier-level weaknesses.
Meanwhile, Aave faces challenges managing liquidity constraints and addressing potential bad debt. Market participants are closely monitoring recovery efforts as both platforms work to restore confidence and stabilize affected systems.
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