Debian Security Advisory

DLA-2432-1 jupyter-notebook -- LTS security update

Date Reported:
19 Nov 2020
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 893436, Bug 917409.
In Mitre's CVE dictionary: CVE-2018-8768, CVE-2018-19351, CVE-2018-21030.
More information:

Several vulnerabilities have been discovered in jupyter-notebook.

  • CVE-2018-8768

    A maliciously forged notebook file can bypass sanitization to execute Javascript in the notebook context. Specifically, invalid HTML is fixed by jQuery after sanitization, making it dangerous.

  • CVE-2018-19351

    allows XSS via an untrusted notebook because nbconvert responses are considered to have the same origin as the notebook server.

  • CVE-2018-21030

    jupyter-notebook does not use a CSP header to treat served files as belonging to a separate origin. Thus, for example, an XSS payload can be placed in an SVG document.

For Debian 9 stretch, these problems have been fixed in version 4.2.3-4+deb9u1.

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:

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