CVE-2024-41942
JupyterHub has a privilege escalation vulnerability with the `admin:users` scope
Description
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.
How to fix CVE-2024-41942
To remediate CVE-2024-41942, upgrade the affected package to a fixed version below.
- —upgrade to 4.1.6 or later
- —no fix listed
- —upgrade to 4.1.6 or later
- —upgrade to 99e2720b0fc626cbeeca3c6337f917fdacfaa428 or later
Is CVE-2024-41942 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 4.1.6, >= 5.0.0, < 5.1.0
- from 0
- from 0, < 4.1.6
- from 0, < 99e2720b0fc626cbeeca3c6337f917fdacfaa428, < ff2db557a85b6980f90c3158634bf924063ab8ba | from 0, < 4.1.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |