# HTML injection in JupyterLite leading to DOM Clobbering

Source: https://junglewise.ai/threats/html-injection-in-jupyterlite-leading-to-dom-clobbering-1e38b5ae  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-09-06  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2024-09-06

HTML injection in JupyterLite leading to DOM Clobbering

Technologies: [jupyterlite-core (PyPI)](https://junglewise.ai/threats/technologies/jupyterlite-core). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 6 September 2024.

**Which products and versions are affected?** jupyterlite-core (PyPI) ECOSYSTEM:introduced=0,fixed=0.4.1.

**Is there a fix for This vulnerability?** Yes. jupyterlite-core (PyPI): upgrade to 0.4.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run jupyterlite-core (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

- jupyterlite-core (PyPI): upgrade to 0.4.1 or later

  ```sh
  pip install "jupyterlite-core>=0.4.1"
  ```


## Affected products

- jupyterlite-core (PyPI) ECOSYSTEM:introduced=0,fixed=0.4.1

## Related threats

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- [JupyterLab HTML output sanitization bypass via clipboard paste](https://junglewise.ai/threats/cve-2026-102831-jupyterlab-is-an-extensible-environment-for-interactive-and)
- [JupyterLab code injection via Plural-Forms header in language pack](https://junglewise.ai/threats/cve-2026-102830-jupyterlab-is-an-extensible-environment-for-interactive-and)
