The RCC has never issued either an infallible Catechism or commentary. Again rather surprising given the authority claims it makes.
Unlike most n-C denoms, the Catholic Church allows the Nicene & Apostle’s creeds to suffice as lists of infallible statements of what we believe. That’s infallible enough. These creeds can change somewhat as we come to better understand God and His word, but the doctrines themselves will never change because they are the same as those taught by the apostles.
You won’t find infallible statements on the young earth, dinosaurs in the Bible, or a definitive time for Christ’s return.
I personally believe that a great deal of the insanity and weird doctrine of n-Cs comes from their error of Sola Scriptura and their feverish efforts to reassure themselves by saying that all truth is in the Bible and that it has the answer for everything and is factually and historically acccurate in every fine detail, even in science and math and in the numbers it gives for the size of the armies that fought in battles.(Sola Scriptura is unscriptural according to 1st Timothy 3:15 anyway)
The Catholic Church recognizes that some things are meant as parables, some as historic records (like a census), and some as expressions of belief at that time.
Prize winning example: Ecclesiastes 9:5 For the living know that they shall die, but the dead know nothing more, neither have they a reward any more: for the memory of them is forgotten.
At that time, the Jews did not have any concept of an afterlife… in fact many today do not believe in a resurrection of the dead as we Christians do. There is no contradiction…the Jews just didn’t understand that at that point, later OT passages offer a context that makes sense of all this.
Does this mean that the Word of God is in error or uninspired? Absolutely not! It does mean that some things like science are not its forte as it is a religious work and not a scientific one and trying to make it appear as an accurate scientific one is foolish in that you are asking it to do something that even God never intended it to do.
The living Tradition of the church does however inform our understanding of what the ECF held as infallible beliefs that they passed on to us from Christ Himself through His apostles without a break.
Infallible statements are made primarily whenever someone attacks or denys a Christian truth. At that point infallible definitions are made of what the church has always believed, but the doctrines never change.
So…if one wants a list of infallible teachings of the Catholic Church… no problem.
The Nicene Creed
We believe in one God,
the Father, the Almighty,
maker of heaven and earth,
of all that is, seen and unseen.
We believe in one Lord, Jesus Christ,
the only son of God,
eternally begotten of the Father,
God from God, Light from Light,
true God from true God,
begotten, not made,
of one being with the Father.
Through him all things were made.
For us and for our salvation
he came down from heaven:
by the power of the Holy Spirit
he became incarnate from the Virgin Mary,
and was made man.
For our sake he was crucified under Pontius Pilate;
he suffered death and was buried.
On the third day he rose again
in accordance with the Scriptures;
he ascended into heaven
and is seated at the right hand of the Father.
He will come again in glory
to judge the living and the dead,
and his kingdom will have no end.
We believe in the Holy Spirit, the Lord, the giver of life,
who proceeds from the Father and the Son.
With the Father and the Son
he is worshipped and glorified.
He has spoken through the Prophets.
We believe in one holy Catholic and apostolic Church.
We acknowledge one baptism for the forgiveness of sins.
We look for the resurrection of the dead,
and the life of the world to come. AMEN.
