Rapid7

vulnerability

Arch Linux: Cross-site scripting (CVE-2021-32797)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Aug 9, 2021
Added
Jul 11, 2025
Modified
Mar 25, 2026

Description

In JupyterLab before version 3.1.4, untrusted notebooks can execute code on load. In particular JupyterLab doesn't sanitize the action attribute of the HTML <form> element. Using this it is possible to trigger the form validation outside of the form itself. This is a remote code execution, but requires user action to open a notebook.

Solution

arch-linux-upgrade-latest
Title
Rapid7 Labs

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