Rome has not defined that faith is unnecessary for a morally good act: Jansenius
Thesis LI. It also appears from what we reported above that the opposite view, which holds that faith in Christ is not necessary for someone to act morally well, is not so certain and defined in the Roman Church that it is forbidden to hold the contrary.
For Jansenius, and a good number of distinguished men who follow him, openly teach the same as the Protestants on this point, and yet Jansenius's book was not publicly censured for this, as it was for many other things.
Latin
LI. Apparet quoque ex iis quae supra retulimus, contrariam sententiam, quae statuit fidem in Christum necessariam non esse, ad hoc ut aliquis bene moraliter operetur, in Ecclesia Romana non ita certam & definitam esse, ut contrarium tenere non liceat; quandoquidem Jansenius, & qui eum sequuntur insignes viri non pauci, idem hac in parte cum Protestantibus aperte docent, nec propterea tamen, ut propter alia multa, publica censura fuit notatus Jansenii liber.