Protocol does not factor for auto-rebasing mechanism of USDB
Summary
Currently the protocol transfers raw USDB, however it does not factor that its an auto-rebasing token. This will lead to the lender losing the potential yield gained from holding USDB.
Vulnerability Detail
The implementation in PredictDotLoan.sol does not track USDB and yield gained but rather raw amounts.
This means that during the time of the loan, the borrower will gain some yield of USDB, however he only has to return the amount he initially borrowed.
Impact
This leads to loss of yield for the Lender, which gave up his USDB tokens for the loan.
valuevalk
High
Protocol does not factor for auto-rebasing mechanism of USDB
Summary
Currently the protocol transfers raw
USDB, however it does not factor that its an auto-rebasing token. This will lead to the lender losing the potential yield gained from holding USDB.Vulnerability Detail
The implementation in PredictDotLoan.sol does not track
USDBand yield gained but rather raw amounts. This means that during the time of the loan, the borrower will gain some yield of USDB, however he only has to return the amount he initially borrowed.Impact
This leads to loss of yield for the Lender, which gave up his USDB tokens for the loan.
References: https://docs.blast.io/building/guides/weth-yield https://docs.blast.io/about-blast
Tool used
Manual Review
Recommendation
Factor the yield gain from holding USDB during the loan.