Submitted by 0xf15ers, also found by 0x52, berndartmueller, cccz, horsefacts, hyh, minhquanym, pauliax, Ruhum, and WatchPug
Malicious user can populate rewards array with different tokens early reaching limit of MAX_REWARD_TOKENS sending very small amount of different tokens. It will restrict any other tokens to be used as rewards in Bribe.sol#notifyRewardAmount()
A custom malicious contract can be created that can make multiple calls to notifyRewardAmount() sending very small amounts of different tokens to populate the array rewards and fulfill the total of MAX_REWARD_TOKENS . This will restrict any other person from adding to rewards array.
pooltypes (Velodrome) confirmed and commented:
Alex the Entreprenerd (judge) decreased severity to Medium and commented:
