CVE-2026-27678

MEDIUM

Missing Authorization check in SAP S/4HANA Backend OData Service (Manage Reference Structures)

Title source: cna

Description

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 a high impact on integrity, while confidentiality and availability are not impacted.

References (2)

https://me.sap.com/notes/3715177

https://url.sap/sapsecuritypatchday

Scores

CVSS v3 6.5

EPSS 0.0003

EPSS Percentile 8.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (1)

SAP_SE/SAP S/4HANA Backend OData Service (Manage Reference Structures) S4CORE 109

Published Apr 14, 2026

Tracked Since Apr 14, 2026