8.8
High
CVE-2026-42266 JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook…
Description
JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not correctly enforced by JupyterLab. The PyPI Extension Manager was not contained to packages listed on the default PyPI index. This vulnerability is fixed in 4.5.7.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| jupyterlab 4.0 | 4.0.0 → < 4.5.7 | 4.5.7 |
| Migration Toolkit for Applications 8 | Versions not published | |
| Red Hat OpenShift AI (RHOAI) | Versions not published | |
| Red Hat Migration Toolkit for Applications 8.2 1784109883 | earliest → < 1784109883 | 1784109883 |
| Red Hat OpenShift AI 3.4 1787073593 | earliest → < 1787073593 | 1787073593 |
References
- github.com github.com
- github.com github.com
- jupyterhub.readthedocs.io jupyterhub.readthedocs.io
- jupyterlab.readthedocs.io jupyterlab.readthedocs.io
Timeline
- Published
- Last modified
Other CVEs of jupyterlab
The 18 CVEs of jupyterlab →
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CVE-2026-102904
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CVE-2026-102831
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CVE-2026-102830
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6.8
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