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Vulnerability · Published Apr 14, 2026 · Assigned by sap

CVE-2026-27679Missing Authorization check in SAP S/4HANA Frontend OData Service (Manage Reference Structures)

Medium 6.5

In plain English

A medium-severity missing authorization in SAP S/4HANA Frontend OData Service (Manage Reference Structures) from SAP_SE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.2%top 92.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
SAP_SE SAP S/4HANA Frontend OData Service (Manage Reference Structures) UIS4H 109

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References