---
cve: "CVE-2026-27690"
severity: "CRITICAL"
cvss: 9.1
epss: "69%"
vendor: "SAP_SE"
kev: false
exploited: false
published: "2026-07-14 01:16:17"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T07:33:48+02:00"
---

# CVE-2026-27690

> 9.1 CRITICAL

## Beschreibung

Due to an HTTP Request Smuggling vulnerability in SAP Approuter, an unauthenticated attacker could send a specially crafted HTTP request that leads to request-response desynchronization. This could result in the exposure of user responses and cause the system to become unavailable. This leads to a high impact on confidentiality and availability.

## CVSS-Vektor

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

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

## Referenzen

- <https://me.sap.com/notes/3720138>
- <https://url.sap/sapsecuritypatchday>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-27690) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_