CVE-2020-36191
MEDIUM4.5EPSS 0.12%Cross-Site Request Forgery in JupyterHub
Published: 5/24/2022Modified: 4/28/2026
Description
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).
Affected packages (4)
- Bitnami/jupyterhub>= 1.1.0, < 1.1.1
- Debian/jupyterhubfrom 0, < 3.0.0+ds1-1
- PyPI/jupyterhubfrom 0, < 1.2.0b1
- PyPI/jupyterhubfrom 0, < 1.2.0b1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM4.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:N |
References (7)
- ADVISORYhttps://github.com/advisories/GHSA-7xx3-qp5w-fw96
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-36191
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-36191
- PATCHhttps://github.com/jupyterhub/jupyterhub
- WEBhttps://github.com/jupyterhub/jupyterhub/issues/3304
- WEBhttps://github.com/jupyterhub/jupyterhub/releases
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2021-67.yaml