---
cve: "CVE-2026-85706"
severity: "CRITICAL"
cvss: 10.0
epss: "97.4%"
vendor: "GitLab"
kev: true
exploited: true
published: "2026-09-12 03:16:30"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T11:40:08+01:00"
---

# CVE-2026-85706

> 10.0 CRITICAL · ⚠️ CISA KEV (47 Tage) · 🔓 Exploited

## Beschreibung

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.11.12, 19.0 before 19.0.9, 19.1 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an unauthenticated user could have read arbitrary files from the GitLab server due to improper path confinement and missing authentication enforcement in the repository commits API.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitLab**
- State: PUBLISHED
- Stand: 2026-09-23 21:03:18
- CNA-CVSS: **10.0** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA KEV seit: **11.09.2026**
- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **active**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-22** — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

## Angriffsmuster (CAPEC)

- [CAPEC-64 — Using Slashes and URL Encoding Combined to Bypass Validation Logic](https://capec.mitre.org/data/definitions/64.html) _(Severity: High)_
- [CAPEC-76 — Manipulating Web Input to File System Calls](https://capec.mitre.org/data/definitions/76.html) _(Severity: Very High)_
- [CAPEC-78 — Using Escaped Slashes in Alternate Encoding](https://capec.mitre.org/data/definitions/78.html) _(Severity: High)_
- [CAPEC-79 — Using Slashes in Alternate Encoding](https://capec.mitre.org/data/definitions/79.html) _(Severity: High)_
- [CAPEC-126 — Path Traversal](https://capec.mitre.org/data/definitions/126.html) _(Severity: Very High)_

## Patch verfügbar (OSV)

- 4b537b4c2227a44f3f9935e783212b1cf927e961 (Commit)
- 28286047c9f2e2a9fd02c6cf0979954241ecc085 (Commit)

## BSI-Hinweise (deutsch)

- [GitLab: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3315) — _BSI-Einstufung: kritisch_
  Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um beliebigen Code auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, sensible Informationen oder Anmeldedaten offenzulegen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder Denial-of-Service-Zustände zu verursachen.

## Referenzen

- <https://gitlab.com/gitlab-org/gitlab/-/work_items/627748>
- <https://hackerone.com/reports/3909881>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85706>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-85706/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_