Chainlink Oracle Glitch Triggers $500K in DeFi Liquidations, Sparks Reliability Debate

A malfunction in Chainlink’s price oracle for the deUSD stablecoin caused over $500,000 in liquidations on May 29, reigniting concerns about the reliability of decentralized finance oracles. The faulty feed inaccurately reported deUSD’s value at $1.03, triggering forced liquidations for Leveraged positions on Avalanche’s Euler Finance protocol.

deUSD, an Elixir-issued stablecoin backed by real-world assets, has gained popularity for its high-yield potential, with $42.7 million circulating on Avalanche. The incident exposed vulnerabilities in oracle systems, particularly when handling illiquid assets. Omer Goldberg of Chaos Labs criticized Chainlink’s 25-minute delay in price updates and questioned its reliance on third-party APIs.

The event underscores the persistent tension between DeFi’s promise of trustless systems and the practical challenges of maintaining accurate price feeds. As leverage strategies proliferate, the stakes for oracle reliability continue to rise.