Aave Suffers $27 Million Liquidation Event Due to wstETH Pricing Anomaly

Decentralized lending protocol Aave recently experienced a sudden wave of liquidations, with approximately $27 million in positions being forcibly closed within 24 hours. According to blockchain data analysis and technology team Chaos Labs, the incident stemmed from a brief anomaly in the wstETH (Lido's liquid staking token) pricing oracle, which led to an undervaluation of its market price by approximately 2.85%. DeFi News protocols rely on asset prices provided by oracles to assess the value of user collateral. When the valuation of wstETH was incorrectly lowered, some users' collateralization ratios suddenly fell below the safety threshold, triggering Aave's automatic liquidation mechanism. This chain reaction spread rapidly, leading to the liquidation of a large number of leveraged positions in a short period of time.

Chaos Labs pointed out that the problem did not originate from wstETH itself, but rather from a parameter configuration error in Aave's CAPO oracle, including outdated exchange rate references and timestamp data, which led to a misjudgment. Fortunately, the incident did not result in protocol bad debt, and all liquidations were completed by third-party liquidators, who received approximately 499 ETH as rewards. Lido also clarified that its protocol and wstETH token are operating normally, and the issue is entirely attributable to data deviation from the external oracle. Aave officials subsequently confirmed that the overall system is secure and that affected users will receive full compensation. Despite the short-term volatility caused by the event, market reaction has been relatively calm. wstETH daily trading volume remains at $339 million, mainly from centralized exchanges, indicating that investors still view the incident as a technical glitch rather than an underlying protocol risk. This incident once again highlights the importance of oracle reliability in DeFi News and reflects the continuous improvement of fault tolerance mechanisms in mainstream protocols when dealing with extreme price fluctuations.