Jupyterhub Oauthenticator vulnerabilities

CVE-2026-33175 [HIGH] CWE-287 CVE-2026-33175: OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with Jupy OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. Prior to version 17.4.0, an authentication bypass vulnerability in oauthenticator allows an attacker with an unverified email address on an Auth0 tenant to login to JupyterHub. When email is used as the usrname_claim, this gives users control ov

CVE-2024-29033 [CRITICAL] CWE-285 CVE-2024-29033: OAuthenticator provides plugins for JupyterHub to use common OAuth providers, as well as base classe OAuthenticator provides plugins for JupyterHub to use common OAuth providers, as well as base classes for writing one's own Authenticators with any OAuth 2.0 provider. `GoogleOAuthenticator.hosted_domain` is used to restrict what Google accounts can be authorized access to a JupyterHub. The restriction is intented to be to Google accounts part of

CVE-2018-7206 [HIGH] JupyterHub OAuthenticator elevation of privilege JupyterHub OAuthenticator elevation of privilege An issue was discovered in Project Jupyter JupyterHub OAuthenticator 0.6.x before 0.6.2 and 0.7.x before 0.7.3. When using JupyterHub with GitLab group whitelisting for access control, group membership was not checked correctly, allowing members not in the whitelisted groups to create accounts on the Hub. (Users were not allowed to access other users' accounts, but could create

CVE-2024-37300 [HIGH] CWE-863 CVE-2024-37300: OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with Jupy OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. JupyterHub < 5.0, when used with `GlobusOAuthenticator`, could be configured to allow all users from a particular institution only. This worked fine prior to JupyterHub 5.0, because `allow_all` did not take precedence over `identity_provider`. S

CVE-2020-26250 [MEDIUM] CWE-863 CVE-2020-26250: OAuthenticator is an OAuth login mechanism for JupyterHub. In oauthenticator from version 0.12.0 and OAuthenticator is an OAuth login mechanism for JupyterHub. In oauthenticator from version 0.12.0 and before 0.12.2, the deprecated (in jupyterhub 1.2) configuration `Authenticator.whitelist`, which should be transparently mapped to `Authenticator.allowed_users` with a warning, is instead ignored by OAuthenticator classes, resulting in the same behav

CVE-2022-31027 [MEDIUM] CWE-639 CVE-2022-31027: OAuthenticator is an OAuth token library for the JupyerHub login handler. CILogonOAuthenticator is p 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 allowed_idps configuration trait of CILogonOAuthenticator is documented t