Insofar as 'common' tourist crime perhaps, in comparison with, say, Jamiaca.
But there is a flip side to the conditions that keep tourists relatively safe. It is not 'safe' if a foreign visitor risks messing with the Cuban government, however, flouting the rules, such as by staying in illegal situations.
Tales of flouting the law without consequence do not prove the "safety" of tourists (or locals) in Cuba.