If you read the Council of Trent, I think it’s the fourth session, the statement reads that all the books of the Latin Vulgate are inspired. Anyone who says otherwise, is anathema.
The Council of Trent does not opine on any other Scriptures. For example, the Orthodox have about 88 books. So, if the Catholic Church is considering reunification with the Orthodox, I don’t think it saying that their Bible is not inspired would be a good, first step.
So, in my opinion, the Catholic canon is still open.