Albino corn snake.
I’m not certain if this is an “albino” cornsnake, as albino doesn’t work the same in cornsnakes as it does in mammals. It could be a snow cornsnake (amel & anery) or maybe another species of ratsnake.
But I would be slightly worried if I owned this snake, as the backbone is prominent, especially on the loop of the body closest to the bottom of the photo. This is an indicator that the snake is underweight for whatever reason - it may simply be recovering from the breeding season and producing a particularly large clutch or two (as cornsnakes can double clutch). It’s not on the verge of dying from being so underweight, but it certainly looks like it could do with a bit of feeding up!
As a rough guide, if you can imagine a cross section of a cornsnake’s body: a triangular shape indicates the snake is underweight, a round shape indicates the snake is overweight, and a bread loaf shape (flat belly but slightly curved back) is a good weight.