CVE-2020-36191: CSRF
First published: Wed Jan 13 2021(Updated: )
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).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/jupyterhub | <1.2.0b1 | 1.2.0b1 |
| IBM Cognos Analytics | <=12.0.0-12.0.3 | |
| IBM Cognos Analytics | <=11.2.0-11.2.4 FP4 | |
| JupyterHub Nbgitpuller | =1.1.0 |
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Reference Links
- https://github.com/jupyterhub/jupyterhub/issues/3304
- https://github.com/jupyterhub/jupyterhub/releases
- https://nvd.nist.gov/vuln/detail/CVE-2020-36191
- https://github.com/advisories/GHSA-7xx3-qp5w-fw96 (Advisory)
- https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2021-67.yaml
- https://www.ibm.com/support/pages/node/7177223 (Advisory)
Frequently Asked Questions
What is CVE-2020-36191?
CVE-2020-36191 is a vulnerability in JupyterHub 1.1.0 that allows CSRF in the admin panel via a request that lacks an `_xsrf` field.
What is the severity of CVE-2020-36191?
The severity of CVE-2020-36191 is medium with a severity score of 4.5.
How does CVE-2020-36191 affect JupyterHub?
CVE-2020-36191 affects JupyterHub 1.1.0 by allowing CSRF in the admin panel through a request that lacks an `_xsrf` field.
How can I fix CVE-2020-36191?
To fix CVE-2020-36191, upgrade JupyterHub to version 1.2.0b1 or higher.
Where can I find more information about CVE-2020-36191?
You can find more information about CVE-2020-36191 on the NVD website (https://nvd.nist.gov/vuln/detail/CVE-2020-36191) and the JupyterHub GitHub page (https://github.com/jupyterhub/jupyterhub/issues/3304).
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