JupyterHub has a privilege escalation vulnerability with the `admin:users` scope
Summary
If a user is granted the admin:users scope, they may escalate their own privileges by making themselves a full admin user.
Details
The admin:users scope allows a user to edit user records:
admin:users
Read, write, create and delete users and their authentication state, not including their servers or tokens.
-- https://jupyterhub.readthedocs.io/en/stable/rbac/scopes.html#available-scopes
However, this includes making users admins. Admin users are granted scopes beyond admin:users making this a mechanism by which granted scopes may be escalated.
Impact
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.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | jupyterhub | < 4.1.6, >= 5.0.0, < 5.1.0 | 4.1.6, 5.1.0 |
Referencias
- https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-9x4q-3gxw-849f
- https://github.com/jupyterhub/jupyterhub/commit/99e2720b0fc626cbeeca3c6337f917fdacfaa428
- https://github.com/jupyterhub/jupyterhub/commit/ff2db557a85b6980f90c3158634bf924063ab8ba
- https://nvd.nist.gov/vuln/detail/CVE-2024-41942
- https://github.com/jupyterhub/jupyterhub
- https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2024-200.yaml
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-274- Plataforma
- Python (PyPI)
- Paquete
jupyterhub- Publicada
- 08.08.2024
- Actualizado
- 11.10.2026 15:17
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2024-200 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-9x4q-3gxw-849f - CC BY 4.0
Historial de vulnerabilidades: jupyterhub
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 8
- Primera → última
- 04.2019 08.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 2
- Media 6
Divulgaciones por año
- 2019: 1
- 2020: 0
- 2021: 2
- 2022: 0
- 2023: 0
- 2024: 2
- 2025: 0
- 2026: 3
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JupyterHub has a privilege escalation vulnerability with the `admin:users` scope esta entrada
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