Vulnerability · Published Jan 13, 2021 · Assigned by mitre
CVE-2020-36191
Medium 4.5
In plain English
A medium-severity security flaw in the jupyterhub package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.5Medium
Exploit odds (30 days)0.5%top 56.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | jupyterhub | 3.0.0+ds1-1 | DEBIAN-CVE-2020-36191 |
| Debian:13 | jupyterhub | 3.0.0+ds1-1 | DEBIAN-CVE-2020-36191 |
| Debian:14 | jupyterhub | 3.0.0+ds1-1 | DEBIAN-CVE-2020-36191 |
| PyPI | jupyterhub | 1.2.0b1 | GHSA-7xx3-qp5w-fw96 |
| PyPI | jupyterhub | 1.2.0b1 | PYSEC-2021-67 |
| Ubuntu:22.04:LTS | jupyterhub | no fix listed | UBUNTU-CVE-2020-36191 |
| Ubuntu:24.04:LTS | jupyterhub | no fix listed | UBUNTU-CVE-2020-36191 |
| Ubuntu:25.10 | jupyterhub | no fix listed | UBUNTU-CVE-2020-36191 |
| Ubuntu:26.04:LTS | jupyterhub | no fix listed | UBUNTU-CVE-2020-36191 |
| Ubuntu:26.10 | jupyterhub | no fix listed | UBUNTU-CVE-2020-36191 |
Affected products (as reported)
References
- https://github.com/jupyterhub/jupyterhub/issues/3304 x_refsource_MISC
- https://github.com/jupyterhub/jupyterhub/releases x_refsource_MISC