Unauthorized data modification via insufficient instance-level authorization
Published Oct 13, 2026 · Updated Oct 13, 2026
Authorization bypass in SAP S/4HANA allows local users to modify unauthorized business object data through modification operations. The supplied record identifies insufficient instance-level checks in the Linear Asset Management RAP business object's operations on associated data; no function or patch details were retrievable. Low privileges and local system access are required, and the reported consequence is unauthorized data modification, not disclosure or service interruption.
Summary
What happened
Authorization bypass in SAP S/4HANA allows local users to modify unauthorized business object data through modification operations. The supplied record identifies insufficient instance-level checks in the Linear Asset Management RAP business object's operations on associated data; no function or patch details were retrievable. Low privileges and local system access are required, and the reported consequence is unauthorized data modification, not disclosure or service interruption.
The record
- CVE
- CVE-2026-89121
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Vendor
- SAP SE
- Product
- SAP S/4HANA
- Classifications
- T1565.001
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Oct 13, 2026CVE publishedPublication date reported by the CVE source.
- Oct 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=S4CORE 109
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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