---
title: "CVE-2019-9644\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-9644?format=md
keywords: index, follow
---

# CVE-2019-9644

Publication date 12 March 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.4 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2019-9644?format=md#impact-score)

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## Description

An XSSI (cross-site inclusion) vulnerability in Jupyter Notebook before
5.7.6 allows inclusion of resources on malicious pages when visited by
users who are authenticated with a Jupyter server. Access to the content of
resources has been demonstrated with Internet Explorer through capturing of
error messages, though not reproduced with other browsers. This occurs
because Internet Explorer's error messages can include the content of any
invalid JavaScript that was encountered.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| jupyter-notebook | 22.04 LTS jammy | Not affected |
| 21.10 impish | Not affected |
| 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Not affected |
| 19.10 eoan | Not affected |
| 19.04 disco | Ignored end of life |
| 18.10 cosmic | Ignored end of life |
| 18.04 LTS bionic | Fixed 5.2.2-1ubuntu0.1 |
| 16.04 LTS xenial | Not in release |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.4 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Unchanged |
  | Confidentiality impact | Low |
  | Integrity impact | Low |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.4 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9644)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-9644)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-9644)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-9644)

### Related Ubuntu Security Notices (USN)

+ [USN-5585-1](https://usn.ubuntu.com/USN-5585-1)
+ Jupyter Notebook vulnerabilities
+ 30 August 2022

### Other references

* <https://github.com/jupyter/notebook/commit/cfc335b76466ccf1538ce545b654b29b5ab0097c>
* <https://github.com/jupyter/notebook/commit/b5105814fc41c6d789b317fa59f786bad7f9d798>
* <https://github.com/jupyter/notebook/commit/bfaa61385729ed4fb453863053f9a79141f01119>
* <https://github.com/jupyter/notebook/compare/f3f00df...05aa4b2>
* <https://www.cve.org/CVERecord?id=CVE-2019-9644>