How to find Create React App version and update it?

Hi,

I know that Ionic cli for React uses CRA behind the scenes but I couldn't find a way to check which version of it is being used in any given ionic-cli version. I checked both Ionic framework repo and this repo and searched in package.json but doesn't seem to be there. Where can I find this info?
Can I upgrade CPA independently from Ionic or CPA updates should only come by updating Ionic (or Ionic CLI)?