CVE-2024-43805: PYSEC-2026-2536 - HTML injection in Jupyter Notebook and JupyterLab leading to DOM Clobbering

Quick answers

Is CVE-2024-43805 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2024-43805 being exploited in the wild.

How severe is CVE-2024-43805?

Low severity, with a CVSS score of 3.1, published 13 July 2026.

Which products and versions are affected?

jupyterlab (PyPI) ECOSYSTEM:introduced=0,fixed=3.6.8, ECOSYSTEM:introduced=0,fixed=3.6.8,introduced=4.0.0,fixed=4.2.5; notebook (PyPI) ECOSYSTEM:introduced=7.0.0,fixed=7.2.2.

Is there a fix for CVE-2024-43805?

Yes. jupyterlab (PyPI): upgrade to 3.6.8, 4.2.5 or later; notebook (PyPI): upgrade to 7.2.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Am I affected by CVE-2024-43805?

Check whether you run jupyterlab (PyPI) or notebook (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

• jupyterlab (PyPI): upgrade to 3.6.8, 4.2.5 or later

  pip install "jupyterlab>=4.2.5"

• notebook (PyPI): upgrade to 7.2.2 or later

  pip install "notebook>=7.2.2"

Affected products

• jupyterlab (PyPI) ECOSYSTEM:introduced=0,fixed=3.6.8, ECOSYSTEM:introduced=0,fixed=3.6.8,introduced=4.0.0,fixed=4.2.5
• notebook (PyPI) ECOSYSTEM:introduced=7.0.0,fixed=7.2.2

Identifiers

• CVE-2024-43805
• GHSA-9q39-rmj3-p4r2
• PYSEC-2026-1481
• PYSEC-2026-2536