In lib/mini_magick/image.rb in MiniMagick before 4.9.4, a fetched remote image filename could cause remote command execution because Image.open input is directly passed to Kernel#open, which accepts a '|' character followed by a command.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "ruby-mini-magick", "binary_version": "4.9.2-1.1" } ] }