Catechism of the Catholic Church affirms exclusive salvation in the Catholic Church : no contradiction

St. Catherine of Sienna (14th Century)
Dialogue of St. Catherine: Baptisms: "I wished thee to see the secret  of the Heart, showing it to thee open, so that you mightest see how much more I loved than I could show thee by finite pain. I poured from it Blood and Water, to show thee the baptism of water which is received in virtue of the Blood. I also showed the baptism of love

 in two ways, first in those who are baptized in their blood shed for  Me which has virtue through My Blood, even if they have not been  able to have Holy Baptism, and also those who are baptized in fire,  not being able to have Holy Baptism, but desiring it with the affection of love. There is no baptism of desire without the Blood,  because Blood is steeped in and kneaded with the fire of Divine  charity, because through love was it shed. There is yet another way  by which the soul receives the baptism of Blood, speaking, as it

were, under a figure, and this way the Divine charity provided,  knowing the infirmity and fragility of an, through which he offends,  not that he is obliged, through his fragility and infirmity, to commit sin, unless he wish to do so; by falling, as he will, into the guild of

mortal sin, by which he loses the grace which he drew from Holy  Baptism in virtue of the Blood, it was necessary to leave a continual  baptism of blood. This the Divine charity provided in the Sacrament  of Holy Confession, the soul receiving the Baptism of blood, with contrition of heart, confessing, when able, to My ministers, who hold the keys of the Blood, sprinkling It, in absolution, upon the face of the soul. But if the soul is unable to confess, contrition of  heart is sufficient for this baptism, the hand of My clemency giving

you the fruit of this precious Blood... Thou seest then that these Baptisms, which you should all receive until the last moment, are continual, and though My works, that is the pains of the Cross  were finite, the fruit of them which you receive in Baptism, through Me, are infinite...".

Lionel: 

 

All who are in Heaven are there with the baptism of water.

For salvation all need faith and baptism for salvation (Ad Gentes 7, Vatican Council ). There are no exceptions. De facto there are no exceptions.

If a person is saved with the baptism of desire or with the baptism of blood,this would be known only to God.So there is not a single case as such in 2014 for us.

This does not rule out implicit for us baptism of desire and baptism of blood. It rules out explicit for us baptism of desire and baptism of blood.

So there is no contradiction with the traditonal teaching: all need faith and baptism for salvation ( AG 7) and the Church knows of no means to eternal beatitude other than the baptism of water(Catechism of the Catholic Church 1257)

1257 The Lord himself affirms that Baptism is necessary for salvation. He  also commands his disciples to proclaim the Gospel to all nations and to baptize them. Baptism is necessary for salvation for those to whom the Gospel has been proclaimed and who have had the possibility of asking for this sacrament. The Church does not know of any means other than Baptism that assures entry into eternal

 beatitude; this is why she takes care not to neglect the mission she has   received from the Lord to see that all who can be baptized are "reborn of water and the Spirit." God has bound salvation to the sacrament of Baptism, but he himself is not bound by his sacraments.-Catechism of the Catholic

Church.

Note: 'God has bound salvation to the sacrament of Baptism, but he himself is not bound by his sacraments 'refers to implicit for us baptism of desire and blood.

Invisible for us baptism of desire and blood do not  contradict the dogma on exclusive salvation. Neither  do they contradict the Principle of Non Contradiction.

-Lionel Andrades