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OpenAdvisories
Medium · 4.2 CVE-2026-102832 EUVD-2026-98809GHSA-jwrc-gm9j-263p

JupyterLab: Command link trust prompt in JupyterLab can trust a document other than the one clicked

Published Oct 13, 2026 · Updated Oct 13, 2026 · Assigned by GitHub_M

Description

JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.5.7 until 4.5.11 and 4.6.4, the markdownviewer:trust and notebook:trust command-link handlers use tracker.currentWidget to resolve the current Markdown viewer or notebook when the user answers rather than retaining the document whose command button was clicked. If another document becomes current while the prompt is open and the user chooses Trust, JupyterLab marks the second document trusted while leaving the clicked document untrusted. Later command buttons in the incorrectly trusted document run without a prompt, and trusting a notebook marks all cells trusted, saves unsaved edits, and persists the server signature to disk. Applications that bundle JupyterLab, including affected Notebook and JupyterLite releases, inherit the behavior. This issue is fixed in versions 4.5.11 and 4.6.4.

Affected products

VendorProductAffectedFixed
jupyterlab jupyterlab >= 4.5.7, < 4.5.11, >= 4.6.0, < 4.6.4 —
jupyterlab jupyterlite-core >= 0.7.5, < 0.8.4 —
jupyterlab notebook >= 7.5.6, < 7.6.3 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Ubuntu 26.10 jupyterlab No fix yet —
Ubuntu 26.04 LTS jupyterlab No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI jupyterlab >= 4.6.0, < 4.6.4 4.6.4 GHSA-jwrc-gm9j-263p
PyPI jupyterlab >= 4.5.7, < 4.5.11 4.5.11 GHSA-jwrc-gm9j-263p
PyPI jupyterlite-core >= 0.7.5, < 0.8.4 0.8.4 GHSA-jwrc-gm9j-263p
PyPI notebook >= 7.5.6, < 7.6.3 7.6.3 GHSA-jwrc-gm9j-263p

References