MetronomeDAO discloses $16M shortfall due to oracle lag

MetronomeDAO revealed that roughly $16 million worth of synthetic assets in its swap module are effectively unbacked, the result of trading bots systematically exploiting stale oracle pricing over a period of several months. The protocol identified approximately 6,367 msETH and 4.57 million msUSD sitting in the swap module without adequate collateral. That represents about 31% of the total msETH supply and 16% of msUSD supply. How stale prices became a $16M problem In MetronomeDAO’s case, the Chainlink ETH/USD oracle on Base was delivering prices with a median latency breach of around 54 seconds. In extreme cases, the delay stretched to 5 minutes and 37 seconds. Automated trading bots identified this gap and executed swaps against mispriced synthetic assets before the oracle caught up to reality, effectively buying underpriced assets or selling overpriced ones. Each trade chipped away at the collateral backing the protocol’s synthetics. MetronomeDAO disclosed the undercollateralization event on July 30. The swap module was compromised, but Morpho markets and MetBasis, two other protocol functions, remained unaffected. MetronomeDAO’s emergency response MetronomeDAO deployed over $34...