CVE-2026-27678

Missing Authorization check in SAP S/4HANA Backend OData Service (Manage Reference Structures)

MEDIUM
6.5
CVSS Score
Published: April 14, 2026 at 12:07 AM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorS4HANA

Using SAP S/4HANA Backend OData Service (Manage Reference Structures) by SAP_SE?

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Due to missing authorization checks in the SAP S/4HANA backend 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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMsap
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-862

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