chore(deps): update dependency jupyterlab to v4.5.7 [security]#616
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This PR contains the following updates:
4.5.6→4.5.7Jupyter Notebook Vulnerable to Authentication Token Theft via CommandLinker XSS
CVE-2026-40171 / GHSA-rch3-82jr-f9w9
More information
Details
Impact
A stored Cross-Site Scripting (XSS) vulnerability in Jupyter Notebook allows attackers to steal authentication tokens from users who open malicious notebook files and interact with elements that the attacker can make look indistinguishable from legitimate controls (single click interaction).
The vulnerability enables complete account takeover through the Jupyter REST API, allowing the attacker to:
Patches
Jupyter Notebook 7.5.6 and JupyterLab 4.5.7 include patches for this vulnerability.
Workarounds
The help extension can be disabled via CLI:
Hardening
The patched versions include a toggle to disable the command linker functionality altogether, for example via
overrides.json:{ "@​jupyterlab/apputils-extension:sanitizer": { "allowCommandLinker": false } }Resources
Acknowledgments
Reported by Daniel Teixeira - NVIDIA AI Red Team
Severity
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NReferences
This data is provided by the GitHub Advisory Database (CC-BY 4.0).
Release Notes
jupyterlab/jupyterlab (jupyterlab)
v4.5.7Compare Source
4.5.7
(Full Changelog)
Security patches
Bugs fixed
Maintenance and upkeep improvements
4.5.xbranch #18817 (@krassowski).jp-VariableRenderer-TrustButtonCSS rule #18762 (@Carreau).jp-Cell-PlaceholderCSS rules #18761 (@Carreau)Documentation improvements
Contributors to this release
The following people contributed discussions, new ideas, code and documentation contributions, and review.
See our definition of contributors.
(GitHub contributors page for this release)
@Carreau (activity) | @filipeoliveira05 (activity) | @flaviomartins (activity) | @itsmejay80 (activity) | @jtpio (activity) | @krassowski (activity) | @martinRenou (activity) | @MUFFANUJ (activity) | @utsav-develops (activity)
Configuration
📅 Schedule: (in timezone Europe/Berlin)
🚦 Automerge: Enabled.
♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
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