Missing Authorization in SAP S/4HANA - CVE-2026-27678
Published: April 14, 2026
Vulnerability identifier: #VU125959
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2026-27678
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: SAP
Affected software:
SAP S/4HANA
SAP S/4HANA
Detailed vulnerability description
The vulnerability allows a remote user to modify data.
The vulnerability exists due to improper access control in SAP S/4HANA Backend OData Service (Manage Reference Structures) when handling requests. A remote user can access the OData service without proper authorization checks to modify data.
How to mitigate CVE-2026-27678
Install security update from vendor's website.