Debian Security Advisory

DLA-2477-1 jupyter-notebook -- LTS security update

Date Reported:
02 Dec 2020
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-26215.
More information:

It was discovered that there was an issue in the Jupyter interactive notebook system where a maliciously-crafted link could redirect the browser to a malicious/spoofed website.

  • CVE-2020-26215

    Jupyter Notebook before version 6.1.5 has an Open redirect vulnerability. A maliciously crafted link to a notebook server could redirect the browser to a different website. All notebook servers are technically affected, however, these maliciously crafted links can only be reasonably made for known notebook server hosts. A link to your notebook server may appear safe, but ultimately redirect to a spoofed server on the public internet. The issue is patched in version 6.1.5.

For Debian 9 Stretch, these problems have been fixed in version 4.2.3-4+deb9u2.

We recommend that you upgrade your jupyter-notebook packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: