Moonwell is investigating an issue in its MAMO Core Market on Base after CertiK and PeckShield flagged an estimated $8.7 million exploit. Moonwell set Base Core Market borrowing caps to 1 wei and reduced MAMO and WELL supply caps to 1 wei as a precaution. CertiK said the attacker manipulated MAMO's collateral price and borrowed cbBTC from the mCBTC market.