On CentOS 8 even with current CWP 0.9.8.1018.
The panel gives:
Danger: Available updates - SECURITY ISSUE
CWP found 1 available yum/rpm updates for your server, click here to check it.
You run dnf update, and there are no updates, also none are listed if you click on the warning link.
Nothing major, but is kinda annoying.