Bug 2515245 (CVE-2026-73627) - CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows unauthorized plugin control
Summary: CVE-2026-73627 jupyterlab: JupyterLab: Plugin manager lock-rule bypass allows...
Keywords:
Status: NEW
Alias: CVE-2026-73627
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2517707 2517708
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-13 11:53 UTC by OSIDB Bzimport
Modified: 2026-08-18 05:55 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-13 11:53:44 UTC
JupyterLab (pip package 'jupyterlab') versions >=4.1.0,<=4.5.9 and >=4.6.0,<=4.6.1 contain a plugin manager lock-rule enforcement bypass. Two server-side enforcement gaps allow an authenticated user to circumvent administrator lock rules by making direct requests to the /lab/api/plugins endpoint, enabling or disabling plugins that were locked — including child plugins of multi-plugin extensions and plugins locked via the 'lock all' mechanism. This can impact data integrity and bypass hardening or restrictions (e.g., download/upload limits) implemented through locked plugins. Fixed in versions 4.6.2 and 4.5.10.


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