The 22-year-old signed for Forest on a four-year deal from Botafogo on deadline day Monday last week.
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Cuiabano has now rejoined the Brazilian club for the remainder of the Campeonato Brasileiro Série A campaign.
The fullback returns to Botafogo on-loan to January.
Fogo had aimed for a deal to the end of the Serie A season, but Forest are confident Cuiabano will be first team ready over the New Year.