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CVSS: 8.3EPSS: 0%CPEs: 2EXPL: 0

08 Aug 2024 — JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to versions 4.1.6 and 5.1.0, if a user is granted the `admin:users` scope, they may escalate their own privileges by making themselves a full admin user. The impact is relatively small in that `admin:users` is already an extremely privileged scope only granted to trusted users. In effect, `admin:users` is equivalent to `admin=True`, which is not intended. Note that the change here only prevents escalation to th... • https://github.com/jupyterhub/jupyterhub/commit/99e2720b0fc626cbeeca3c6337f917fdacfaa428 • CWE-274: Improper Handling of Insufficient Privileges •

CVSS: 9.4EPSS: 0%CPEs: 1EXPL: 0

27 Mar 2024 — JupyterHub is an open source multi-user server for Jupyter notebooks. By tricking a user into visiting a malicious subdomain, the attacker can achieve an XSS directly affecting the former's session. More precisely, in the context of JupyterHub, this XSS could achieve full access to JupyterHub API and user's single-user server. The affected configurations are single-origin JupyterHub deployments and JupyterHub deployments with user-controlled applications running on subdomains or peer subdomains of either th... • https://github.com/jupyterhub/jupyterhub/commit/e2798a088f5ad45340fe79cdf1386198e664f77f • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE-352: Cross-Site Request Forgery (CSRF) CWE-565: Reliance on Cookies without Validation and Integrity Checking •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

04 Nov 2021 — JupyterHub is an open source multi-user server for Jupyter notebooks. In affected versions users who have multiple JupyterLab tabs open in the same browser session, may see incomplete logout from the single-user server, as fresh credentials (for the single-user server only, not the Hub) reinstated after logout, if another active JupyterLab session is open while the logout takes place. Upgrade to JupyterHub 1.5. For distributed deployments, it is jupyterhub in the _user_ environment that needs patching. Ther... • https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27 • CWE-613: Insufficient Session Expiration •

CVSS: 4.5EPSS: 0%CPEs: 1EXPL: 1

13 Jan 2021 — JupyterHub 1.1.0 allows CSRF in the admin panel via a request that lacks an _xsrf field, as demonstrated by a /hub/api/user request (to add or remove a user account). JupyterHub versión 1.1.0, permite un ataque de tipo CSRF en el panel de administración por medio de una petición que carece de un campo _xsrf, como es demostrado por una petición /hub/api/user (para agregar o eliminar una cuenta de usuario). • https://github.com/jupyterhub/jupyterhub/issues/3304 • CWE-352: Cross-Site Request Forgery (CSRF) •