Is it safe to use caching on get_object in django class-based view

I use some permission checks inside overridden check_permissions. I get the instance I will work with using get_object. I know that after this the get_object method will be called again - during retrieve or destroy methods. So I use caching (@lru_cache). See full example below.

from functools import lru_cache

from rest_framework.exceptions import PermissionDenied
from rest_framework.generics import RetrieveDestroyAPIView


class UserView(RetrieveDestroyAPIView):
    permission_classes = [ProjectAdminOnly]
    serializer_class = UserSerializer

    @lru_cache
    def get_object(self, *args, **kwargs):
        return UserService.get(self.kwargs['user_id'])

    def check_permissions(self, request):
        super().check_permissions(request)
        user = self.get_object()
        # Only within the same project
        if self.request.user.project != user.project:
            raise PermissionDenied()

This code passes my tests successfully, but I wonder is there any unsafe situation in which the caching will do the bad service for me?