Ruby 4.0.5-1 Security Release!

Security release!

This release only contains a security fix for CVE-2026-46727: Use-after-free in pthread-based getaddrinfo timeout handler and a build system regression in Ruby 4.0.4 under C locale [Bug #22065].

This release only contains a security fix for CVE-2026-46727: Use-after-free in pthread-based getaddrinfo timeout handler and a build system regression in Ruby 4.0.4 under C locale [Bug #22065].

Our Supporters

AM Graphix
Bear
codium
Jet Brains
OCH
Tassos gr

Sorry, this website uses features that your browser doesn't support. Upgrade to a newer version of Firefox, Chrome, Safari, or Edge and you'll be all set.