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TI-2026-71492 Aliases CVE-2026-89107GHSA-mw39-66pq-v675

Code injection in SAP S/4HANA (Manage Substitution/Validation Rules)

Priority MEDIUM 43CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

SAP S/4HANA (Manage Substitution/Validation Rules) is affected from S4CORE 105, 106, 107, 108 and 109. The rule definition functionality does not sufficiently validate input written in its domain-specific scripting language, so crafted input (CWE-94) is interpreted as ABAP code. An authenticated attacker with specific business privileges can execute arbitrary ABAP code, which can fully compromise the affected system.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00481 41st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SAPSAP S/4HANA (Manage Substitution/Validation Rules)S4CORE 105; 106; 107; 108; 109—No fix listedCNA
  • SAP S/4HANA (Manage Substitution/Validation Rules) VendorSAP Affected S4CORE 105; 106; 107; 108; 109 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for SAP S/4HANA (Manage Substitution/Validation Rules).

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-89107
  2. 2026-10-13 Alias added: GHSA-mw39-66pq-v675
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-14 CISA SSVC decision points changed

References

Other 2

  • TI-2025-22522 Missing Authorization check in SAP NetWeaver (Visual Composer development server) KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-06811 SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP… KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-15842 Path traversal in SAP NetWeaver KEVCVSS 3.1CRITICAL 9.9
  • TI-2020-05139 Missing authentication in SAP NetWeaver AS JAVA KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-05063 Missing authentication in SAP Solution Manager KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-00284 Deserialization of untrusted data in SAP Commerce Cloud KEVCVSS 3.1CRITICAL 9.8
See all 1967 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences