RedSonic Vault Exploit Drains 9.25 ETH in Ethereum Flash Loan Attack

TLDR: RedSonic Vault lost 9.25 ETH after an attacker exploited a dual-asset pricing flaw entirely. A permissionless registerErc20 function let the attacker add a second, conflicting stETH share class. The attacker flash-loaned 1,139 WETH from Balancer and needed zero starting cap...