Open Redirect Affecting jupyter-server package, versions <1.1.1-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.18% (56th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Open Redirect vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIAN11-JUPYTERSERVER-1054554
  • published26 Dec 2020
  • disclosed21 Dec 2020

Introduced: 21 Dec 2020

CVE-2020-26275  (opens in a new tab)
CWE-601  (opens in a new tab)

How to fix?

Upgrade Debian:11 jupyter-server to version 1.1.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jupyter-server package and not the jupyter-server package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

The Jupyter Server provides the backend (i.e. the core services, APIs, and REST endpoints) for Jupyter web applications like Jupyter notebook, JupyterLab, and Voila. In Jupyter Server before version 1.1.1, an open redirect vulnerability could cause the jupyter server to redirect the browser to a different malicious website. All jupyter servers running without a base_url prefix are technically affected, however, these maliciously crafted links can only be reasonably made for known jupyter server hosts. A link to your jupyter server may appear safe, but ultimately redirect to a spoofed server on the public internet. This same vulnerability was patched in upstream notebook v5.7.8. This is fixed in jupyter_server 1.1.1. If upgrade is not available, a workaround can be to run your server on a url prefix: "jupyter server --ServerApp.base_url=/jupyter/".

CVSS Scores

version 3.1