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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102832
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102832
x_refsource_CONFIRM
https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-jwrc-gm9j-263p
x_refsource_MISC
https://github.com/jupyterlab/jupyterlab/commit/0fc18ab4ef67e431a8f6560e387193baf786c70a
x_refsource_MISC
https://github.com/jupyterlab/jupyterlab/commit/b64bc88b8ca034cf158604a5cc48ca9170ea453b
x_refsource_MISC
https://github.com/jupyterlab/jupyterlab/commit/f7e5f9803fdf2aaaa0e9bfb9cc73386a8cc5f0b2
x_refsource_MISC
https://github.com/jupyterlab/jupyterlab/releases/tag/v4.5.11
x_refsource_MISC
https://github.com/jupyterlab/jupyterlab/releases/tag/v4.6.4
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