Anza, the developer of the Solana (SOL) validator client, has pointed out a critical vulnerability in the mainnet beta validator. According to CryptoSlate, the severity of this vulnerability is 9.8 out of 10. Although the code fixing the vulnerability has already been distributed, it has not yet been applied to the Ubuntu kernel commonly used by validators. Anza has recommended blocking suspicious network data, and no actual cases of damage have been reported yet.
