Well, no one's 100% safe from discrimination lawsuits.
However, looks like such practices are not considered discriminatory by law.
> Two federal laws, the Equal Credit Opportunity Act (ECOA) and the Fair Housing Act (FHA), offer protections against discrimination. The ECOA forbids credit discrimination on the basis of race, color, religion, national origin, sex, marital status, age, or whether you receive income from a public assistance program.
However, looks like such practices are not considered discriminatory by law.
> Two federal laws, the Equal Credit Opportunity Act (ECOA) and the Fair Housing Act (FHA), offer protections against discrimination. The ECOA forbids credit discrimination on the basis of race, color, religion, national origin, sex, marital status, age, or whether you receive income from a public assistance program.