Detections
Analytics
SCA: security update for jupyterlab, notebook (GHSA-mqcg-5x36-vfcg)
high Tenable Cloud Security Plugin ID 441310
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter
Notebook Architecture. Prior to 4.5.7, JupyterLab's HTML sanitizer allowlists data-commandlinker-command
and data-commandlinker-args on button elements, while CommandLinker listens for all click events on
document.body and executes the named command without checking whether the element came from trusted
JupyterLab UI. A notebook with a pre-saved HTML cell output containing a deceptive button can trigger
arbitrary JupyterLab commands - including arbitrary code execution - on a single user click, without any
code being submitted for execution by the user. This vulnerability is fixed in 4.5.7. (CVE-2026-42557)
Solution
Update the jupyterlab library and its related packages to version 4.5.7 or later.See Also
Plugin Details
Severity: High
ID: 441310
Version: Revision 1.12
Type: Local
Family: SCA Checks
Published: 5/7/2026
Updated: 7/6/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 94.16
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-42557
CVSS v3
Risk Factor: Critical
Base Score: 9.6
Temporal Score: 8.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.6
Threat Score: 6.1
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 5/6/2026
Vulnerability Publication Date: 5/6/2026
Reference Information
CVE: CVE-2026-42557
cwe: CWE-79