Vulnerability in SAP_SE SAP S/4HANA (Manage Substitution/Validation Rules)

[ Why it matters ]Priority signals

• Critical severity: CVSS 9.9

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• CERT-FR13 Oct 2026CERTFR-2026-AVI-1300

  Multiple vulnerabilities in SAP products Translated from French

  Multiple vulnerabilities have been discovered in SAP products. Some of them allow an attacker to cause remote arbitrary code execution, a breach of data confidentiality and SQL injection (SQLi).

  CVE-2025-42938CVE-2026-89120CVE-2026-89116+19 more CVEs
• BSI CERT-Bund12 Oct 2026WID-SEC-2026-3888

  SAP Patch Day Oktober 2026: Multiple vulnerabilities Translated from German

  CVE-2026-76972CVE-2026-89110CVE-2026-24316+19 more CVEs

[ References ]References

• me.sap.com/notes/3805589
• url.sap/sapsecuritypatchday