Inconsistent interpretation of HTTP requests in SAP Approuter - CVE-2026-27690
Published: July 14, 2026
Vulnerability identifier: #VU137496
CSH Severity: Medium
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-27690
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service and disclose sensitive information.
The vulnerability exists due to improper parsing of ambiguous HTTP requests in SAP Approuter when handling HTTP requests. A remote attacker can send specially crafted HTTP requests to cause a denial of service and disclose sensitive information.
Affected software
SAP Approuter
How to mitigate CVE-2026-27690
Install security update from vendor's website.
SAP Approuter - update to 20.10.0