The Market.getEscrow, Fed.expansion and Fed.contraction methods do not have the noReentrant modifier and make calls to an external contract that can take advantage of and call these methods again, but it seems to fail due to the lack of tokens.
However, if any of the other addresses used their receive event to provide liquidity to the contract, the attacking account could benefit from it.
For example, in getEscrow if the escrow allows a callback, it could create two scrows, loosing funds if in this callback it will call again getEscrow, using for example deposit
Please note that current escrows do not allow re-entry, so I decided to use Low.
Its always good to change the storage flags before the externals calls.
