A jupyter-notebook security update has been released for Debian GNU/Linux 9 LTS to address an issue where a maliciously-crafted link could redirect the browser to a malicious/spoofed website.

DLA 2477-1: jupyter-notebook security update

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Debian LTS Advisory DLA-2477-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
December 02, 2020   https://wiki.debian.org/LTS
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Package : jupyter-notebook
Version : 4.2.3-4+deb9u2
CVE ID : CVE-2020-26215

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

For Debian 9 "Stretch", this problem has been fixed in version
4.2.3-4+deb9u2.

We recommend that you upgrade your jupyter-notebook packages.

For the detailed security status of jupyter-notebook please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/jupyter-notebook

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