A floating-point underflow vulnerability

[kgchinthana]

The system is vulnerable to floating-point underflow due to accepting extremely high payment values followed by reversals, leading to zero net cost. Additionally, using floating-point arithmetic for financial calculations causes precision errors. Proper input validation, range limits, and the use of Decimal instead of floats are necessary to prevent such exploits.https://medium.com/@jollyfish/integer-overflow-underflow-and-floating-point-imprecision-6ba869a99033