Summary:

Warning of underflow on the calculation : seconds_since: uint256 = block.timestamp - updated_at

Vulnerability Details:

Although block.timestamp is always greater than or equal to updated_at, there is no explicit check to ensure this. A misconfigured oracle could set updated_at to a future timestamp, leading to an underflow and incorrect behavior.

Tools Used

None

Recommendations

Adding explicit checks block.timestamp >= updated_at,