Flow

Summary

stream recipient might need to keep stream solvent via deposit to sell the nft, the stream sender can unknowingly/maliciously void it to the direct detriment of the stream recipient.

Vulnerability Details

Stream recipinet might need to sell stream NFT with solvency( to remain attractive) or use as collateral based on pre-agreed balance, and stream sender can arbitrarily impede this by calling voidwhich forfeits all uncovered debt.

Impact

In the sablier docs - under use cases, there are situations where streams can be used as collateral, and they buyer might need to increase the value of thier collateral by deposits which are impossible when the stream is voided. leaving an insolvent stream running does nothing to the sender, but voiding it only affects the recipient.

`Deposits cannot be made on voided streams`

Tools Used

Manual Review

Recommendations

Sender should not be able to singularaly void ream as it only affects the recipient.