WeWork is considering a bailout that will hand control of the co-working giant to SoftBank Group Corp., according to a person familiar with the matter, one of two main options to rescue the once high-flying startup.

The Japanese investment powerhouse controlled by billionaire Masayoshi Son is convinced it can turn around the cash-strapped American company with the right financial controls in place, the person said, asking not to be identified talking about internal deliberations. WeWork's board and backers, however, are also weighing another option: JPMorgan Chase & Co. is leading discussions about a $5 billion debt package, Bloomberg has reported.

Either rescue package would ease a cash crunch that could leave the office-sharing company short of funds as soon as next month. The office-sharing startup had been headed toward one of the year's most hotly anticipated IPOs before prospective investors balked at certain financial metrics and flawed governance, turning the American giant into a cautionary tale of private market exuberance and costing the company's top executive his job.