---
title: "jupyterlab — CVE-2026-102831"
description: "A cross-site scripting flaw affects the PyPI package jupyterlab. Affected versions: >= 4.6.0, <= 4.6.3. Fixed from version 4.6.4. CVSS score 8.1."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-10-01-cve-2026-102831
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-01
dateModified: 2026-10-01
---
# jupyterlab — CVE-2026-102831

A cross-site scripting flaw affects the PyPI package jupyterlab. Affected versions: >= 4.6.0, <= 4.6.3. Fixed from version 4.6.4. CVSS score 8.1.

## What to do

Update jupyterlab to 4.6.4 or later.

| Fact | Value |
| --- | --- |
| Package | jupyterlab |
| Ecosystem | PyPI (Python) |
| Class | Cross-site scripting |
| Affected versions | >= 4.6.0, <= 4.6.3 |
| Fixed version | 4.6.4 |
| CVSS | 8.1 |
| CVE | CVE-2026-102831 |
| GHSA | GHSA-6966-vjj6-99xv |
| Published on | October 1, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-6966-vjj6-99xv](https://github.com/advisories/GHSA-6966-vjj6-99xv) — GitHub Security Advisories
- [NVD — CVE-2026-102831](https://nvd.nist.gov/vuln/detail/CVE-2026-102831) — NVD

---

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