---
cve: "CVE-2026-5262"
severity: "HIGH"
cvss: 8.0
epss: "22%"
vendor: "GitLab"
kev: false
exploited: false
published: "2026-04-22 17:16:44"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-09T01:53:55+02:00"
---

# CVE-2026-5262

> 8.0 HIGH

## Beschreibung

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.1.0 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that under certain conditions could have allowed an unauthenticated user to access tokens in the Storybook development environment due to improper input validation.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 48d537ce479485ffb6aef70f62ead88ac15e78b8 (Commit)
- 2c4a87e00b3f5ab1eab353136020dfcab34ae6ca (Commit)

## Referenzen

- <https://gitlab.com/gitlab-org/gitlab/-/work_items/595332>
- <https://hackerone.com/reports/3574642>
- <https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-5262) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_