In general chromatic aberrations are a pain in the ass, in HDR tone mapped images, they are a root canal! Those out of control Cyan/Magenta/Purple fringes around tree branches and buildings can really make a great image look horrible! The good news, you can control them. Consider the Hue/Saturation Adjustment Layer your leash and put those nasty devilish aberrations on it and take them for a walk!
As an added bonus, I threw in some intel as to how you can control select colors in your image using the same Hue/Saturation Adjustment Layer!