CVE-2022-31027

OAuthenticator is an OAuth token library for the JupyerHub login handler. CILogonOAuthenticator is provided by the OAuthenticator package, and lets users log in to a JupyterHub via CILogon. This is primarily used to restrict a JupyterHub only to users of a given institute. The allowedidps...

CVE-2022-31027

OAuthenticator is an OAuth token library for the JupyerHub login handler. CILogonOAuthenticator is provided by the OAuthenticator package, and lets users log in to a JupyterHub via CILogon. This is primarily used to restrict a JupyterHub only to users of a given institute. The allowedidps...

CVE-2022-31027 Authorization Bypass Through User-Controlled Key when using CILogonOAuthenticator in oauthenticator

OAuthenticator is an OAuth token library for the JupyerHub login handler. CILogonOAuthenticator is provided by the OAuthenticator package, and lets users log in to a JupyterHub via CILogon. This is primarily used to restrict a JupyterHub only to users of a given institute. The allowedidps...

CVE-2022-31027

CVE-2022-31027 affects the OAuthenticator/CILogonOAuthenticator used by JupyterHub. The root cause is that allowed_idps is validated only by email domain, not by IdP (provider) identity, allowing login via an alternate IdP with a @domained email (e.g., berkeley.edu) to bypass intended restriction...