Auth bypass in Sap_se Sap S/4hana Backend Odata Service (Manage Reference Structures)
CVE-2026-27678
Due to missing authorization checks in the SAP S/4HANA backend OData Service (Manage Reference Structures), an attacker could update and delete child entities via exposed OData services without proper authorization. This vulnerability has…
Vulnerability class: Broken Access Control
EPSS: 0.000 (10.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Sap_se Sap S/4hana Backend Odata Service (Manage Reference Structures) — versions S4CORE 109
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-27678?
- CVE-2026-27678 is a medium-severity vulnerability in Sap_se Sap S/4hana Backend Odata Service (Manage Reference Structures), classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-04-14.
- How severe is CVE-2026-27678?
- Medium severity. CVSS v3 base score is 6.5 out of 10.