Summary

Can change balances if win race conditions , during reseeding, there is no Access Conditions applied to init.

https://github.com/Cyfrin/2024-05-beanstalk-the-finale/blob/4e0ad0b964f74a1b4880114f4dd5b339bc69cd3e/protocol/contracts/beanstalk/init/reseed/L2/ReseedInternalBalances.sol#L28-L42

Vulnerability Details

Can totally broke the protocol, and mix balances of beans.

Impact

Huge.

Tools Used

slither hardhat echidna

Recommendations

Have some Access Consitions for init funcitons.