High-Integrity OData Auth Bypass in SAP S/4HANA Frontend
CVE-2026-27679 Published on April 14, 2026
Missing Authorization check in SAP S/4HANA Frontend OData Service (Manage Reference Structures)
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.
Vulnerability Analysis
CVE-2026-27679 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-27679 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-27679
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