The Brazilian striker has been linked with Chelsea, Everton and Tottenham in recent weeks.
The 24-year-old told UEFA.com: “Only CSKA president Evgeny Giner knows if I should leave the club. At the moment there are no offers, so I’m staying.
“My deal runs until summer 2010. I’m not thinking about an extension yet, but I’m 100 per cent happy at CSKA.
“I’m clearly disappointed by finishing second and, if we had won the title, I would have been totally happy.
“I’ll try to achieve more next season in terms of both my personal performance and team results, as I want more trophies.”