Skip to content
Fencer Vulns
high 7.2

CVE-2024-41942 json

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

published 2024-08-08 2 y ago modified 2026-09-10 1 mo ago also BIT-jupyterhub-2024-41942 , EUVD-2024-0080 , GHSA-9x4q-3gxw-849f , PYSEC-2024-200

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi jupyterhub 4.1.6, 5.1.0
  • bitnami jupyterhub 4.1.6, 5.1.0
  • jupyter jupyterhub 4.1.6, 5.1.0
  • jupyterhub Debian 14, Debian 13 5.2.1+ds1-1

debian advisories DEBIAN-CVE-2024-41942

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi jupyterhub
<4.1.6
>=5.0.0, <5.1.0
4.1.6
5.1.0
bitnami jupyterhub
<4.1.6
>=5.0.0, <5.1.0
4.1.6
5.1.0

Affected products

  • jupyterhub jupyterhub

Classification

Weakness
  • CWE-274 Improper Handling of Insufficient Privileges

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.