puma
Puma is a simple, fast, multi-threaded, and highly parallel HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly parallel Ruby implementations such as JRuby and TruffleRuby as well as as providing process worker support to support CRuby well.
Security Advisories for puma in rubygems
Moderate
about 1 year ago
Puma's header normalization allows for client to clobber proxy set headers
rubygems
puma
Low
about 4 years ago
Puma with proxy which forwards LF characters as line endings could allow HTTP request smuggling
rubygems
puma
Moderate
almost 6 years ago
A poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack
rubygems
puma