PYSEC-2026-862 OpenStack Compute (Nova) Resource limit circumvention in Nova private flavors

The "create an instance" API in OpenStack Compute Nova Folsom, Grizzly, and Havana does not properly enforce the os-flavor-access:ispublic property, which allows remote authenticated users to boot arbitrary flavors by guessing the flavor id. NOTE: this issue is due to an incomplete fix for...