SB2026041497 - Multiple vulnerabilities in SAP S/4HANA

Description

This security bulletin contains information about 5 vulnerabilities.

1) Missing Authorization (CVE-ID: CVE-2026-27676)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to modify data.

The vulnerability exists due to improper access control in SAP S/4HANA OData Service (Manage Technical Object Structures) when handling requests. A remote user can access the OData service without proper authorization checks to modify data.

2) Missing Authorization (CVE-ID: CVE-2026-27673)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to modify data and cause limited service disruption.

The vulnerability exists due to improper access control in SAP S/4HANA (Private Cloud and On-Premise) when handling requests. A remote user can access functionality without proper authorization checks to modify data and cause limited service disruption.

3) Missing Authorization (CVE-ID: CVE-2026-27679)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to modify data.

The vulnerability exists due to improper access control in SAP S/4HANA Frontend OData Service (Manage Reference Structures) when handling requests. A remote user can access the OData service without proper authorization checks to modify data.

4) Missing Authorization (CVE-ID: CVE-2026-27678)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to modify data.

The vulnerability exists due to improper access control in SAP S/4HANA Backend OData Service (Manage Reference Structures) when handling requests. A remote user can access the OData service without proper authorization checks to modify data.

5) Missing Authorization (CVE-ID: CVE-2026-27677)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to modify data.

The vulnerability exists due to improper access control in SAP S/4HANA OData Service (Manage Reference Equipment) when handling requests. A remote user can access the OData service without proper authorization checks to modify data.

Remediation

Install update from vendor's website.

References

• https://support.sap.com/en/my-support/knowledge-base/security-notes-news/april-2026.html
• https://me.sap.com/notes/3711682
• https://me.sap.com/notes/3703813
• https://me.sap.com/notes/3716767
• https://me.sap.com/notes/3715177
• https://me.sap.com/notes/3715097