CVE-2026-27679 — MEDIUM (6.5)

Vulnerability Description

Due to missing authorization checks in the SAP S/4HANA frontend OData Service (Manage Reference Structures), an attacker could update and delete child entities via exposed OData services without proper authorization. This vulnerability has a high impact on integrity, while confidentiality and availability are not impacted.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Sap	Manage Reference Structures	uis4h_109
Sap	S\/4Hana	-

Related Weaknesses (CWE)

CWE-862

References

https://me.sap.com/notes/3716767Permissions Required
https://url.sap/sapsecuritypatchdayPermissions Required

FAQ

What is CVE-2026-27679?

CVE-2026-27679 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Due to missing authorization checks in the SAP S/4HANA frontend OData Service (Manage Reference Structures), an attacker could update and delete child entities via exposed OData services without prope...

How severe is CVE-2026-27679?

CVE-2026-27679 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-27679?

Check the references section above for vendor advisories and patch information. Affected products include: Sap Manage Reference Structures, Sap S\/4Hana.