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CVE-2026-27679

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

6.5 Medium

CVE-2026-27679 is a medium vulnerability (CVSS 6.5) in Sap Manage Reference Structures, published April 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.

What does this mean?
Severity
6.5 MediumCVSS 3.1, CVE List
Exploit chance
0.19%EPSS, 8th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.19%Up 0.2 points since Apr 14, 2026
90%50%10%1%

Affected products

What each source reports

CVE List Score used6.5

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

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.

Record
CVE-2026-27679
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-221526.5

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.

Record
EUVD-2026-22152
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-fcjm-cm6x-4v666.5

Due to missing authorization checks in the SAP S/4HANA frontend OData Service (Manage Reference...

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.

Record
GHSA-fcjm-cm6x-4v66
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-862
Updated
2026-11-02
NVD6.5

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.

Record
CVE-2026-27679
CVSS 3.1
6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-862
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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