Detections
Analytics

Chainguard: jupyterhub-k8s-singleuser-sample: security update to 4.4.2-r7

medium Tenable Cloud Security Plugin ID 473746

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. From JupyterLab 3.0.0 until 4.5.11 and 4.6.4, and in JupyterLite Core 0.8.3 and
 earlier, the Plural-Forms header in a selected third-party language pack can append JavaScript after a
 valid plural rule because prefix-only regular-expression validation accepts a matching prefix without
 requiring the entire header to match. JupyterLab passes the accepted expression to new Function, so
 loading the catalogue and translating a plural string executes the appended code in the authenticated
 JupyterLab origin. Where Jupyter Server kernels, terminals, and APIs are exposed, the code can use
 authenticated server APIs to read or modify files and run code. Impact is much more limited in JupyterLite
 because it typically lacks most exposed Jupyter Server surfaces. The default English locale is unaffected
 because it does not load a translation catalogue. This issue is fixed in JupyterLab 4.5.11 and 4.6.4 and
 JupyterLite Core 0.8.4. (CVE-2026-102830)

Solution

Update the jupyterhub-k8s-singleuser-sample library and its related packages to version 4.4.2-r7 or later.

Plugin Details

Severity: Medium

ID: 473746

Version: Revision 1.1

Type: Local

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.44

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-102830

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/29/2026

Reference Information

CVE: CVE-2026-102830