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 limited privileges to update and delete child entities through exposed OData services without proper authorization. The vulnerability impacts data integrity but does not affect confidentiality or availability. It has a CVSS 3. 1 base score of 6. 5, indicating a medium severity level. No official patch or remediation guidance has been provided yet, and there are no known exploits in the wild. The affected version is UIS4H 109.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-27679) arises from missing authorization enforcement in the SAP S/4HANA frontend OData Service component responsible for managing reference structures. An attacker with at least limited privileges can exploit the exposed OData services to update or delete child entities without proper authorization checks. The issue compromises the integrity of the affected data but does not impact confidentiality or availability. The CVSS 3.1 score of 6.5 reflects a medium severity due to network attack vector, low attack complexity, and no user interaction required. No patch or official remediation level has been disclosed by SAP as of the publication date.
Potential Impact
The vulnerability allows unauthorized modification and deletion of child entities within the SAP S/4HANA frontend OData Service, leading to a high impact on data integrity. Confidentiality and availability remain unaffected. This could result in unauthorized data tampering within affected SAP environments running version UIS4H 109.
Mitigation Recommendations
Patch status is not yet confirmed — check the SAP vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected OData services to trusted users only and monitor for unusual modification activities related to reference structures. Avoid exposing these services to untrusted networks.
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 limited privileges to update and delete child entities through exposed OData services without proper authorization. The vulnerability impacts data integrity but does not affect confidentiality or availability. It has a CVSS 3. 1 base score of 6. 5, indicating a medium severity level. No official patch or remediation guidance has been provided yet, and there are no known exploits in the wild. The affected version is UIS4H 109.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-27679) arises from missing authorization enforcement in the SAP S/4HANA frontend OData Service component responsible for managing reference structures. An attacker with at least limited privileges can exploit the exposed OData services to update or delete child entities without proper authorization checks. The issue compromises the integrity of the affected data but does not impact confidentiality or availability. The CVSS 3.1 score of 6.5 reflects a medium severity due to network attack vector, low attack complexity, and no user interaction required. No patch or official remediation level has been disclosed by SAP as of the publication date.
Potential Impact
The vulnerability allows unauthorized modification and deletion of child entities within the SAP S/4HANA frontend OData Service, leading to a high impact on data integrity. Confidentiality and availability remain unaffected. This could result in unauthorized data tampering within affected SAP environments running version UIS4H 109.
Mitigation Recommendations
Patch status is not yet confirmed — check the SAP vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected OData services to trusted users only and monitor for unusual modification activities related to reference structures. Avoid exposing these services to untrusted networks.
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: 4/14/2026, 12:32:14 AM
Last updated: 4/14/2026, 10:03:42 AM
Views: 13
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