You don't need to hack an Xbox One for homebrew as Dev mod exists (which allows any Xbox One to turn into a dev kit, effectively allowing you to run unlicensed software, to a certain extent anyways), so no exploit has been publicly released since it would only really give piracy (which most devs don't generally condone).
There are a few emulators and such already released for Dev mode, I believe Retroarch was ported over by Libretro a bit ago so you can always grab that, but otherwise you won't find anything that lets you pirate games or anything.