VULNERABILITY INTELLIGENCE

CVE-2021-32797

CVSS score7.4 HIGH
EPSS probability2.66%
CISA KEVNot currently listed
Published2021-08-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Description

JupyterLab is a user interface for Project Jupyter which will eventually replace the classic Jupyter Notebook. In affected versions untrusted notebook can execute code on load. In particular JupyterLab doesn’t sanitize the action attribute of html `<form>`. 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.

Weakness classification

  • security-advisories@github.com: CWE-79
  • nvd@nist.gov: CWE-79

Primary references