I think it can be said that an unbalanced (high or low) libido is disordered, just as the homosexual tendency is said by the Church to be disordered. But these disordered conditions are not sinful.
I disagree, based on what the catechism says.
It asserts that lust is a disordered desire, and that "sexual pleasure is morally disordered when sought for itself, isolated from its procreative and unitive purposes". In other words, the ends for which sexual pleasure is sought are what dictates the morality here. If, as you assert, high libido doesn't necessarily lead to lust, then it follows that a high libido isn't necessarily morally disordered.
Moreover, the allusion to homosexuality doesn't seem to be warranted: whereas homosexual acts are "intrinsically disordered" and in fact, homosexual tendencies/inclination are noted as objectively disordered, no such statement about lust being "objectively disordered" is in the CCC. Therefore, it follows that, based on the CCC, we cannot say that a high libido is disordered.
(CCC references: lust (#2351), homosexuality (#2357-58))
Might there be any other Church documents out there that address the question to shed greater light on the discussion?