container uid changes to root after first restart or if image is already pulled to the node

CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L, 4.9 medium In kubelet v1.13.6 and v1.14.2, containers for pods that do not specify an explicit runAsUser attempt to run as uid 0 root on container restart, or if the image was previously pulled to the node. If the pod specified mustRunAsNonRoot: true,...