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CVE-2021-32798

Published: 9 August 2021

The Jupyter notebook is a web-based notebook environment for interactive computing. In affected versions untrusted notebook can execute code on load. Jupyter Notebook uses a deprecated version of Google Caja to sanitize user inputs. A public Caja bypass can be used to trigger an XSS when a victim opens a malicious ipynb document in Jupyter Notebook. The XSS allows an attacker to execute arbitrary code on the victim computer using Jupyter APIs.

Priority

Medium

Cvss 3 Severity Score

9.6

Score breakdown

Status

Package Release Status
jupyter-notebook
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Not vulnerable
(6.4.8-1)
kinetic Not vulnerable
(6.4.8-1)
lunar Not vulnerable
(6.4.8-1)
mantic Not vulnerable
(6.4.8-1)
noble Not vulnerable
(6.4.8-1)
trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 9.6
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H