A flaw was found in CRI-O that involves an experimental annotation leading to a container being unconfined. This may allow a pod to specify and get any amount of memory/cpu, circumventing the kubernetes scheduler and potentially resulting in a denial of service in the node.
https://bugzilla.redhat.com/show_bug.cgi?id=2253994
https://access.redhat.com/security/cve/CVE-2023-6476