According to BlockSec Phalcon, as reported by Odaily, their system detected a series of suspicious transactions targeting MoonwellDeFi's Base and Optimism smart contracts. Analysis indicates the problem stemmed from a vulnerability in the rsETH/ETH token price source originating from an off-chain oracle, potentially exploited by a MEV bot, resulting in losses exceeding $1 million. The price used by the protocol was incorrectly updated.