CVE-2026-89107: CWE-94: Improper Control of Generation of Code in SAP_SE SAP S/4HANA (Manage Substitution/Validation Rules)
Description
CVE-2026-89107 is a critical vulnerability in SAP S/4HANA's Manage Substitution/Validation Rules component. It arises from insufficient validation of input processed by a domain-specific scripting language used in rule definitions. An authenticated attacker with certain business privileges can submit crafted input that is executed as arbitrary ABAP code. This can lead to full system compromise, severely impacting confidentiality, integrity, and availability.
CVSS v3.1
Score 9.9critical
Affected software
SAP_SE
SAP S/4HANA (Manage Substitution/Validation Rules)
pkg:github/sap_se/SAP_S4HANA_Manage_Substitution_Validation_RulesRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SAP S/4HANA (Manage Substitution/Validation Rules) does not properly validate input processed by its rule definition functionality, which uses a domain-specific scripting language. An attacker with specific authenticated business privileges can submit specially crafted input that the system interprets as executable ABAP code. Exploiting this vulnerability allows arbitrary code execution within the SAP system, potentially leading to complete system compromise. The vulnerability is identified as CWE-94 (Improper Control of Generation of Code) and has a CVSS v3.1 score of 9.9, indicating critical severity.
Potential Impact
Successful exploitation enables an attacker with limited authenticated business privileges to execute arbitrary ABAP code, resulting in full compromise of the affected SAP S/4HANA system. This impacts confidentiality, integrity, and availability at a high level, potentially allowing unauthorized data access, modification, or disruption of system operations.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to the Manage Substitution/Validation Rules functionality to trusted users only and monitor for suspicious activity related to rule definitions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sap
- Date Reserved
- 2026-09-10T22:24:03.822Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acd83812cdf04f656126ecc
Added to database: 10/13/2026, 01:04:01 UTC
Last enriched: 10/13/2026, 01:18:29 UTC
Last updated: 10/13/2026, 01:18:59 UTC
Views: 5
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