Undertow is a Java web server based on non-blocking IO. It consists of a few different parts:

• A core HTTP server that supports both blocking and non-blocking IO
• A Servlet 4.0/5.0/6.0 implementation
• A JSR-356/Jakarta 2.0 compliant Web Socket implementation

Website: http://undertow.io

Issues: https://issues.redhat.com/projects/UNDERTOW

Project Lead: Flavia Rainone frainone@redhat.com

Undertow Dev Group: https://groups.google.com/g/undertow-dev/ (you can access archived discussions of old undertow-dev mail list here)

Zulip Chat: https://wildfly.zulipchat.com stream #undertow

If you find a bug that has a security impact, please notify us sending an email to Red Hat SecAlert secalert@redhat.com with a copy to Flavia Rainone frainone@redhat.com. This will ensure the bug is properly handled without causing unnecessary negative impacts for the Undertow's user base.

You can find more information about the security procedures at this page.