---
cve: "CVE-2026-91081"
severity: "MEDIUM"
cvss: 6.9
epss: "0.3%"
vendor: "suitenumerique"
kev: false
exploited: false
published: "2026-09-14 18:20:29"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T20:52:50+02:00"
---

# CVE-2026-91081

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

Docs through 5.6.1 contains a server-side request forgery vulnerability in the cors-proxy endpoint that allows anonymous attackers to make outbound requests by providing a public document UUID. Attackers can exploit DNS time-of-check-time-of-use race conditions and shared address space bypasses to access internal network resources and exfiltrate image content.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 3c1275c88da39abb71e045c7deaba3844ca9ac49 (Commit)

## Referenzen

- <https://github.com/suitenumerique/docs/issues/2545>
- <https://github.com/suitenumerique/docs>
- <https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/api/viewsets.py>
- <https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/models.py>
- <https://www.vulncheck.com/advisories/docs-through-5.6.1-ssrf-via-unauthenticated-cors-proxy-endpoint>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-91081) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_