Detections
Analytics
Jupyterlab Python Library 4.1.x < 4.5.10 / 4.6.x < 4.6.2 (CVE-2026-73627)
medium Nessus Plugin ID 342598
Synopsis
A Python library installed on the remote host is affected by a vulnerability.Description
jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. The detected version of the JupyterLab Python package is 4.1.x prior to 4.5.10, or 4.6.x prior to 4.6.2. It is, therefore, affected by a vulnerability:- JupyterLab contains 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. (CVE-2026-73627)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Jupyterlab version 4.5.10, 4.6.2 or later.See Also
Plugin Details
Severity: Medium
ID: 342598
File Name: jupyterlab_python_lib_4_5_10_CVE-2026-73627.nasl
Version: 1.1
Type: Local
Agent: windows, macosx, unix
Family: Misc.
Published: 9/3/2026
Updated: 9/3/2026
Configuration: Enable thorough checks (optional)
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.73
CVSS v2
Risk Factor: Medium
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS Score Source: CVE-2026-73627
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4
Risk Factor: Medium
Base Score: 6
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/a:jupyter:jupyterlab
Patch Publication Date: 7/22/2026
Vulnerability Publication Date: 7/21/2026
Reference Information
CVE: CVE-2026-73627