JupyterHub has a privilege escalation vulnerability with the `admin:users` scope

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 the built-in JupyterHub admin role that has unrestricted permissions. It does not prevent users with e.g. `groups` permissions from granting themselves or other users permissions via group membership, which is intentional. Versions 4.1.6 and 5.1.0 fix this issue.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

不充分特权处理不恰当

JupyterHub 安全漏洞

JupyterHub是JupyterHub开源的一款用于Jupyter的多用户服务器。 JupyterHub 存在安全漏洞，该漏洞源于被授予 admin:users 的用户可以通过使自己成为完全管理员用户来提升自己的权限。

N/A

N/A