---
cve: "CVE-2026-102530"
severity: "CRITICAL"
cvss: 9.4
epss: "0.4%"
vendor: "jupyterlab"
kev: false
exploited: false
published: "2026-11-06 20:35:53"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-08T04:22:46+01:00"
---

# CVE-2026-102530

> 9.4 CRITICAL · 🧪 PoC

## Beschreibung

JupyterLab Desktop is the cross-platform desktop application for JupyterLab. Prior to 4.6.2-1, remote-server URLs were inserted into the server-selection dialog and Welcome view without safe encoding. An attacker who convinces a user to submit a crafted URL can execute JavaScript in the Welcome renderer and abuse its privileged IPC bridge to execute arbitrary code with the user’s privileges. The Welcome view also unsafely renders RSS news-feed titles; exploitation through this separate input path requires control over content delivered through the application’s Jupyter Blog feed or its cached feed data, rather than submission of a remote-server URL. This issue affects all supported platforms and is fixed in version 4.6.2-1.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-11-06 20:35:53
- CNA-CVSS: **9.4** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`)

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Schwachstellen-Klasse

- **CWE-116** — Improper Encoding or Escaping of Output
  The product prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
- **CWE-79** — Improper Neutralization of Input During Web Page Generation
  The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
- **CWE-94** — Improper Control of Generation of Code
  The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

## Angriffsmuster (CAPEC)

- [CAPEC-73 — User-Controlled Filename](https://capec.mitre.org/data/definitions/73.html) _(Severity: High)_
- [CAPEC-81 — Web Server Logs Tampering](https://capec.mitre.org/data/definitions/81.html) _(Severity: High)_
- [CAPEC-85 — AJAX Footprinting](https://capec.mitre.org/data/definitions/85.html) _(Severity: Low)_
- [CAPEC-104 — Cross Zone Scripting](https://capec.mitre.org/data/definitions/104.html) _(Severity: High)_

## Patch verfügbar (OSV)

- aa672a9bca0b969cc517f3c7d030991307e802df (Commit)
- f59fd4f61bc6a2ca89cf0d13dce5f60511eaef5d (Commit)

## Referenzen

- <https://github.com/jupyterlab/jupyterlab-desktop/security/advisories/GHSA-vrj4-r4fw-9rfh>
- <https://github.com/jupyterlab/jupyterlab-desktop/commit/f59fd4f61bc6a2ca89cf0d13dce5f60511eaef5d>
- <https://github.com/jupyterlab/jupyterlab-desktop/releases/tag/v4.6.2-1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-102530/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_