yes, from what i have...
heard it is common. i only have one snake and he has never had mites, but they can be carried in the substrate depending on which kind you use which is why it is recommended that you bake it for a while before you spread it in the viv. i don't know the exact temperature or oven time, but i'm sure someone can help you with that. also...if you purchase your snakes from a pet store one or more of them may have had a case of mites and spread it to the others. i have seen more than one snake at petco with mites crawling all over it.
