It appears there is a CVE out for the discourse admin page. 100005 DotNetNuke - File Inclusion - CVE:CVE-2018-9126, CVE:CVE-2011-1892.
Cloudflare was triggered while trying to update my discourse installation it 403’d this URI /admin/docker/latest?path=%2Fvar%2Fwww%2Fdiscourse&version=c093fa0&branch=origin%2Ftests-passed
This prevented update checking to continue. Whitelisting my IP in cloudflare resolved this issue.