Tokenized Stocks Under Fire: Edel Exploit Exposes Collateral Vulnerabilities

The DeFi lending protocol Edel was hit by a $403,000 exploit that targeted tokenized stocks. The attack manipulated the exchange rate between wGOOGLx and GOOGLx, causing the collateral value of wGOOGLx to inflate roughly 78 times its correct level.

Edel's price feed used an ERC-4626-style vault's convertToAssets() rate, which can be manipulated when an attacker controls enough of the underlying flow. The attack also involved a flash loan to repeatedly supply and borrow, distorting the wGOOGLx/GOOGLx conversion rate.

The exploit highlighted a critical failure in tokenized stocks as collateral, particularly in the exchange rate between wrapped tokens and their underlying counterparts. Edel's team noted that the protocol would absorb the bad debt and restore affected balances one-to-one.