The 21-year-old, who made his debut for the club in October 2011, has been registered for their first-team squad this season, but injuries have thus far kept him on the sidelines.
"Isaac has just returned from injury and still has two years on his contract," Jose Maria Orobitg told fichajes.
"A loan is probably the easiest way out. If the club does not give him many minutes before January, then I'm sure we can find some interested teams. He would like to go abroad rather than stay in Spain."
Cuenca spent last season with Dutch outfit Ajax.