Missing Authorization in SAP S/4HANA - CVE-2026-27679
Published: April 14, 2026
Vulnerability identifier: #VU125960
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-27679
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to modify data.
The vulnerability exists due to improper access control in SAP S/4HANA Frontend OData Service (Manage Reference Structures) when handling requests. A remote user can access the OData service without proper authorization checks to modify data.
Affected software
SAP S/4HANA
How to mitigate CVE-2026-27679
Install security update from vendor's website.