Github Users Outside Organisation get authenticated in Jenkins. configured GitHub SSO using “GitHub Authentication Plugin”. SSO works but anyone on GitHUb is able to login to jenkins. How to restrict authentication to particular github organization or by invitation.
Isn’t that specifically a setting for the plugin? Have you looked at the screen where your enable that auth?
I’ve never used the plugin but if it doesn’t support it, then your options are limited. Probably something. Like matrix b auth that let’s you apply permissions via groups