Medium severity · published Oct 13, 2026
CVE-2026-102832
JupyterLab: Command link trust prompt in JupyterLab can trust a document other than the one clicked
4.2
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JU
jupyterlab · jupyterlab
>= 4.5.7, < 4.5.11; >= 4.6.0, < 4.6.4 · source: vendor
JU
jupyterlite-core · jupyterlab
>= 0.7.5, < 0.8.4 · source: vendor
NO
notebook · jupyterlab
>= 7.5.6, < 7.6.3 · source: vendor
Affected product
JU
jupyterlab
jupyterlab
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