Miss Dominican Republic Carlina Duran committed the worst Miss Universe infraction of them all -- well, besides being a man -- and it cost her the crown. Check out TMZ on TV -- click here to see your local listings!

The woman who won the title of Miss Dominican Republic 2012 ... has been forced to relinquish her crown after officials discovered the ultimate skeleton in her closet -- A HUSBAND!!! 25-year-old Carlina Duran has been 86'd from her post ... after pageant officials say she violated a rule which…