CVE-2026-27679: CWE-862: Missing Authorization in SAP_SE SAP S/4HANA Frontend OData Service (Manage Reference Structures)
CVE-2026-27679 is a vulnerability in the SAP S/4HANA frontend OData Service (Manage Reference Structures) caused by missing authorization checks. This flaw allows an attacker with some privileges to update and delete child entities via exposed OData services without proper authorization. The vulnerability impacts data integrity but does not affect confidentiality or availability. It has a medium severity rating with a CVSS score of 6. 5. No official patch or remediation guidance is currently provided by the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-27679) in SAP S/4HANA frontend OData Service arises from missing authorization checks in the Manage Reference Structures service. An attacker with limited privileges could exploit this to modify or delete child entities through the OData interface without proper authorization validation. The issue affects integrity but not confidentiality or availability. The CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N), indicating a network attack vector with low attack complexity and requiring low privileges. No vendor patch or official remediation level has been published yet.
Potential Impact
The vulnerability allows unauthorized modification and deletion of child entities, compromising data integrity within the affected SAP S/4HANA OData service. Confidentiality and availability remain unaffected. This could lead to unauthorized data changes that may disrupt business processes relying on accurate reference structures.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected OData service to trusted users only and monitor for unusual modification activities. Avoid exposing the vulnerable service to untrusted networks or users with minimal privileges.
CVE-2026-27679: CWE-862: Missing Authorization in SAP_SE SAP S/4HANA Frontend OData Service (Manage Reference Structures)
Description
CVE-2026-27679 is a vulnerability in the SAP S/4HANA frontend OData Service (Manage Reference Structures) caused by missing authorization checks. This flaw allows an attacker with some privileges to update and delete child entities via exposed OData services without proper authorization. The vulnerability impacts data integrity but does not affect confidentiality or availability. It has a medium severity rating with a CVSS score of 6. 5. No official patch or remediation guidance is currently provided by the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-27679) in SAP S/4HANA frontend OData Service arises from missing authorization checks in the Manage Reference Structures service. An attacker with limited privileges could exploit this to modify or delete child entities through the OData interface without proper authorization validation. The issue affects integrity but not confidentiality or availability. The CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N), indicating a network attack vector with low attack complexity and requiring low privileges. No vendor patch or official remediation level has been published yet.
Potential Impact
The vulnerability allows unauthorized modification and deletion of child entities, compromising data integrity within the affected SAP S/4HANA OData service. Confidentiality and availability remain unaffected. This could lead to unauthorized data changes that may disrupt business processes relying on accurate reference structures.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected OData service to trusted users only and monitor for unusual modification activities. Avoid exposing the vulnerable service to untrusted networks or users with minimal privileges.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sap
- Date Reserved
- 2026-02-23T17:50:10.513Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dd877482d89c981f91f53c
Added to database: 4/14/2026, 12:16:52 AM
Last enriched: 4/21/2026, 6:25:23 AM
Last updated: 5/29/2026, 3:03:39 AM
Views: 63
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