That is not what the Catechism teaches.
Talking about the Sacrament:
1450 “Penance requires . . . the sinner to (1) endure all things willingly, (2) be contrite of heart, (3) confess with the lips, and (4) practice complete humility and (5) fruitful satisfaction.”
Notice that fruitful satisfaction (works of penance) is listed as a requirement along with contrition and the confession itself.
If fruitful satisfaction is not necessary for forgiveness, then neither is contrition.
I doubt anyone would say contrition is unnecessary.
1459 "the sinner must still recover his full spiritual health by doing something more to make amends for the sin: he must “make satisfaction for” or “expiate” his sins. This satisfaction is also called “penance.”
Strong words: “must”…“requires”…
No satisfaction/expiation = No penance
That is what I was taught.
…
Then you were taught wrong. The section of the Catechism on penance refers to more than just the formal sacramental form administered by a priest. As this portion of it shows:
"V. THE MANY FORMS OF PENANCE IN CHRISTIAN LIFE
1434 The interior penance of the Christian can be expressed in many and various ways. Scripture and the Fathers insist above all on three forms, fasting, prayer, and almsgiving,[31] which express conversion in relation to oneself, to God, and to others. Alongside the radical purification brought about by **Baptism or martyrdom **they cite as means of obtaining forgiveness of sins: effort at reconciliation with one’s neighbor, tears of repentance, concern for the salvation of one’s neighbor, the intercession of the saints, and the practice of charity “which covers a multitude of sins.”[32]
So when was the last time you or anyone walked into a confessional and the priest mentioned baptism or martyrdom as the appropriate penance, hmmm?
This is what the Catechism has to say regarding formal confession to and absolution by a priest:
"1484 “
Individual, integral confession and absolution remain the only ordinary way for the faithful to reconcile themselves with God and the Church, **unless physical or moral impossibility excuses **from this kind of confession.”[94] There are profound reasons for this. Christ is at work in each of the sacraments. He personally addresses every sinner: “My son, your sins are forgiven.”[95] … "
Any mention of the priest being obligated to order a formal act of penance in there? Any mention of forgiveness being conditional once the words ‘your sins are forgiven’ have been pronounced through the mouth of the priest?
As for exomologesis, certainly it was ordered - but for an indefinite period? Absolutely not. Long periods? Certainly. Years? Yes. These people were in the same position as Catechumens (those being prepared to enter the faith) or those who die without access to a priest who make an Act of Perfect Contrition (which includes the resolution to confess if possible).
Anyone who, through no doing of their own, has the resolution and intention to seek absolution but is prevented from doing so, is indeed treated as if they had sought and obtained such absolution. As it says - someone who is ordered to undergo the process of penance
prior to absolution, or is undergoing the catechumenate or whatever, is under a physical or moral impossibility of exactly the type envisioned in the Catechism.