Yes, let's take Eugene IV saying in the bull Canate Domino, "The Most Holy Roman Church ... firmly believes, professes and preaches that none of those existing outside the Catholic Church, not only pagans, but also Jews, and heretics, and schismatics, can ever be partakers of eternal life, but that they are to go into the eternal fire 'which was prepared for the devil, and his angels,' (Mt. 25:41) unless before death they are joined with Her" Now, that sounds like an ex cathedra statement.(before the current form was established). 

But it has been contradicted -- and that is the proper word -- by Vatican II's Lumen Gentium, which says that Jews can certainly be saved.

Now, Tridentinus will try to pretend that these two statements are compatible, and will get all huffy when I say that the only way one can say that is by being dishonest. Trid's ideology insists that the magisterium does not change; and mere facts will not change his mind.