Mike Perham Sidekiq has an unspecified vulnerability

Mike Perham sidekiq is an application open sourced by Mike Perham. Using threads to process many jobs simultaneously in the same process, a security vulnerability exists in Mike Perham Sidekiq, which stems from the api.rb of Sidekiq before 6.4.0, where there is no limit on the number of days to request statistics for a chart. This can overload the system, affect the Web UI, and make it unavailable to users. No details of the vulnerability are currently available.