Upgrade Redmine/Rails to mitigate CVE-2019-5418
alpine-bugs:/usr/share/webapps/redmine# gem list --local '^rails$' *** LOCAL GEMS *** rails (4.2.8)
This should be updated to 18.104.22.168 at least.
(from redmine: issue id 10149, created on 2019-03-22)
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information