CVE-2026-27677
Authorization Bypass in SAP S/4HANA OData Service Impacts Integrity
Publication date: 2026-04-14
Last updated on: 2026-04-14
Assigner: SAP SE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| sap | s_4hana | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-862 | The product does not perform an authorization check when an actor attempts to access a resource or perform an action. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists due to missing authorization checks in the SAP S/4HANA OData Service called Manage Reference Equipment.
An attacker could exploit this flaw to update and delete child entities via OData services without having proper authorization.
The vulnerability primarily impacts data integrity, meaning unauthorized changes can be made, but it does not affect confidentiality or availability.
How can this vulnerability impact me? :
This vulnerability can impact you by allowing an attacker with limited privileges to modify or delete important child entities within the SAP S/4HANA system without proper authorization.
Such unauthorized modifications compromise the integrity of your data, potentially leading to incorrect or corrupted information being stored or processed.
However, this vulnerability does not impact the confidentiality or availability of the system or data.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
This vulnerability impacts the integrity of data by allowing unauthorized updates and deletions of child entities in SAP S/4HANA OData Service. While confidentiality and availability are not affected, the integrity breach could lead to non-compliance with standards and regulations such as GDPR and HIPAA, which require maintaining accurate and reliable data.
Specifically, unauthorized modification or deletion of data may violate data integrity requirements under these regulations, potentially resulting in regulatory penalties or loss of trust.