CVE-2026-27690 | Due to an HTTP Request Smuggling vulnerability in SAP Approu… | CVSS 9.1 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-27690
State: PUBLISHED
Assigner: sap
Reserved: 2026-02-23 17:50 UTC
Published: 2026-07-14 00:17 UTC
Last updated: 2026-07-14 00:17 UTC
Primary CWE: CWE-444
CWE-444: Inconsistent Interpretation of HTTP Requests
Vendor / Product: SAP_SE / SAP Approuter
Sources: cve.org · NVD

Severity & Metrics

9.1 CRITICAL CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
SAP_SE	SAP Approuter	—	SAP Approuter node.js package < 20.10.0

Weakness (CWE)

CWE	Source	Description
CWE-444	cna	CWE-444: Inconsistent Interpretation of HTTP Requests

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.1	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References (2)