Nostra, a lending protocol on Starknet, suffered a DeFi exploit where an attacker manipulated its NSTR price feed from $0.006 to $49.5, using the inflated token as collateral to borrow approximately $3.5M in multiple cryptocurrencies. The protocol paused operations while investigating, highlighting the critical vulnerability of oracle price feeds in DeFi systems.
A user reported on MEX's significant 600% price increase and traced the financial flows behind it.