---
id: CVE-2026-89107
title: >-
  SAP S/4HANA (Manage Substitution/Validation Rules) does not sufficiently
  validate input processed by rule definition functionality that utilizes a
  domain-specific scripting language
summary: >-
  SAP S/4HANA (Manage Substitution/Validation Rules) does not sufficiently
  validate input processed by rule definition functionality that utilizes a
  domain-specific scripting language. An authenticated attacker with specific
  business privi…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-94
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T01:16:47.507'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89107'
references:
  - url: 'https://me.sap.com/notes/3805589'
    label: cna@sap.com
  - url: 'https://url.sap/sapsecuritypatchday'
    label: cna@sap.com
tags:
  - nvd
ingestedAt: '2026-10-13T02:12:00.761Z'
---

## Overview

SAP S/4HANA (Manage Substitution/Validation Rules) does not sufficiently validate input processed by rule definition functionality that utilizes a domain-specific scripting language. An authenticated attacker with specific business privileges could submit specially crafted input, which is interpreted as executable ABAP code by the rule processing logic. Successful exploitation could allow the attacker to execute ABAP arbitrary code into the system, resulting in full compromise of the affected system and high impact on confidentiality, integrity, and availability of the system.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.