---
title: "jupyter-server — CVE-2026-114135"
description: "An authentication bypass flaw affects the PyPI package jupyter-server. Affected versions: >= 2.0.0, < 2.6.0. Fixed from version 2.6.0. CVSS score 8.8."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-10-22-cve-2026-114135
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-10-22
dateModified: 2026-10-22
---
# jupyter-server — CVE-2026-114135

An authentication bypass flaw affects the PyPI package jupyter-server. Affected versions: >= 2.0.0, < 2.6.0. Fixed from version 2.6.0. CVSS score 8.8.

## What to do

Update jupyter-server to 2.6.0 or later.

| Fact | Value |
| --- | --- |
| Package | jupyter-server |
| Ecosystem | PyPI (Python) |
| Class | Authentication bypass |
| Affected versions | >= 2.0.0, < 2.6.0 |
| Fixed version | 2.6.0 |
| CVSS | 8.8 |
| CVE | CVE-2026-114135 |
| GHSA | GHSA-354v-3q48-cv69 |
| Published on | October 22, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-354v-3q48-cv69](https://github.com/advisories/GHSA-354v-3q48-cv69) — GitHub Security Advisories
- [NVD — CVE-2026-114135](https://nvd.nist.gov/vuln/detail/CVE-2026-114135) — NVD

---

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