CVE-2026-27690

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.

Score

CVSS 3.1 9.1 Critical

Status

Analyzed - cna@sap.com

Published

2026-07-14

Last modified

2026-10-24

Weaknesses

CWE-444

Affected products

• Approuter (Sap)
• Sap Approuter (Sap Se)

References

• https://me.sap.com/notes/3720138
• https://url.sap/sapsecuritypatchday