Aave Hit by $27M in Liquidations Tied to wstETH Oracle Misconfiguration

Decentralized lending platform Aave saw approximately $27 million in liquidations over a single 24-hour period, with blockchain data from risk-management firm Chaos Labs confirming a sharp spike in activity. Market observers believe the event stemmed from a configuration error in the protocol's pricing infrastructure rather than any broader market instability.

At the center of the incident was wstETH, a Lido-issued token representing staked Ethereum that naturally appreciates over time due to accumulated staking rewards. According to on-chain analysts, Aave's risk oracle was briefly valuing wstETH at around 1.19 ETH while open markets priced it closer to 1.23 ETH — a gap wide enough to push certain borrowing positions into liquidation territory.

Chaos Labs later clarified that the underlying market oracle was functioning correctly. The real culprit was a misconfiguration in Aave's CAPO oracle, a safeguard designed to cap how rapidly yield-bearing token values can rise. Outdated parameters stored in a smart contract — specifically a stale exchange rate and its timestamp — caused the system to calculate a maximum allowable rate below wstETH's actual market value. The result was that the protocol temporarily treated wstETH as roughly 2.85% less valuable than it truly was, triggering a cascade of automated liquidations.

Importantly, Chaos Labs confirmed the protocol suffered no bad debt from the episode. However, liquidators — bots and traders who settle undercollateralized loans in exchange for discounted assets — walked away with approximately 499 ETH in bonuses and arbitrage profits.

Chaos Labs CEO Omer Goldberg stated that every affected user would be fully reimbursed. A Lido contributor also confirmed the issue was entirely unrelated to how wstETH operates, noting the Lido protocol continued functioning normally throughout the event.

The incident echoes a similar oracle failure on DeFi lender Moonwell, where a misconfiguration briefly priced cbETH at $1, resulting in nearly $1.8 million in bad debt — a reminder of how critical accurate oracle infrastructure remains across decentralized finance.