Bento, 26, joined the Saudi Professional League club from Athletico Paranaense back in July 2024, and has made 59 appearances across all competitions.
According to Fabrizio Romano, West Ham are working to sign him after submitting a loan offer with a £10 million option to buy.
West Ham’s move to sign the goalkeeper comes after splashing £20 million to sign Mads Hermansen from Leicester in the summer.
Bento has represented Brazil six times, making his international debut against England in 2024.