---
cve: "CVE-2026-59831"
severity: "MEDIUM"
cvss: 4.4
epss: "0.3%"
vendor: "cli"
kev: false
exploited: false
published: "2026-07-09 23:17:05"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T05:08:15+02:00"
---

# CVE-2026-59831

> 4.4 MEDIUM · 🧪 PoC

## Beschreibung

GitHub CLI (gh) is GitHub’s official command line tool. From 2.10.0 through 2.95.0, connecting to a malicious Codespace with gh codespace jupyter can allow command execution because the command opens a JupyterLab URL supplied by a process inside the Codespace without validating that it is a loopback HTTP or HTTPS address, allowing a crafted vscode:// or vscode-insiders:// URL to be handed to VS Code. This issue is fixed in version 2.96.0.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- b300f2ec7ec9dc9addc39b2ad88c54097ded7ca0 (Commit)

## Referenzen

- <https://github.com/cli/cli/security/advisories/GHSA-8cg3-r6g9-fpg2>
- <https://github.com/cli/cli/commit/b300f2ec7ec9dc9addc39b2ad88c54097ded7ca0>
- <https://github.com/cli/cli/releases/tag/v2.96.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59831) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_