npm package report

Is @jupyter-notebook/help-extension safe?

1 known vulnerability, worst severity HIGH.

cvss

8.4

how bad it is if exploited, out of 10

epss

0.50%

chance of exploitation in the next 30 days

xyz score

3.3

CyberXYZ composite, out of 10

fig. 01 — GHSA-rch3-82jr-f9w9, the advisory selected below

// advisories

GHSA-rch3-82jr-f9w9

HIGHCVE-2026-40171

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).

Affected: >=0, <4.5.7
Fixed in: not stated
Weakness: CWE-601
Published: 2026-04-30
Source: osv

NVD MITRE OSV

// dependencies

0 direct

// ai model usage

Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

Checked 2026-09-22 at 02:48 UTC. The most recent advisory here was published 2026-04-30. Updated continuously from NVD, GHSA, OSV and CNA feeds.

Is @jupyter-notebook/help-extension safe? npm package security report | CyberXYZ