Reentrancy in NextGenMinterContract.mint() allows exceeding max allowance and concurrent use of NFTs in NextGenMinterContract.burnToMint()

Lines of code Vulnerability details Impact 1. Bypassing maxAllowance in NextGenMinterContract.mint: Enables minting more NFTs than permitted. 2. Exploiting reentrancy in NextGenMinterContract.burnToMint: Allows acquiring both burnable and mintable NFTs at the same time. Proof of Concept The 1st...

Keepers are allowed to use the full EUSD balance of any provider to liquidate funds

Lines of code Vulnerability details Impact Keepers are allowed to use the full EUSD balance of any provider to liquidate funds. Normally, the keeper should only be allowed to use max of the amount that the provider approves to LybraStETHVault. But the check only checks if the provider gives an...