GHSA-9V25-R5Q2-2P6W Candy Machine Set Collection During Mint Missing Check

A problem with Candy Machine V2 allow minting NFTs to an arbitrary collection due to a missing check. Here is a description of the exploit: Details: Here is the tx/ix to exploit: Transaction: Ix 1: candymachine v2, mintnft, passing in empty metadata -1 Ix 2: custom handler, 0 cpi A -- tokenmetada...