Flash Loan Exploit Mechanisms
Flash loan exploit mechanisms leverage the ability to borrow massive amounts of capital without collateral, provided the loan is repaid within the same transaction block. Attackers use this liquidity to manipulate asset prices on decentralized exchanges, subsequently triggering liquidations or draining arbitrage opportunities in other protocols.
Because these loans are atomic, they allow for high-leverage attacks that require zero upfront capital, making them a significant threat to under-collateralized protocols. Protocol security verification must account for these mechanisms by ensuring price oracles are robust against short-term manipulation.
Defending against such exploits requires protocols to rely on decentralized, time-weighted average price feeds rather than single-source spot prices.