CVE-2026-89107 Code Injection vulnerability in SAP S/4HANA (Manage Substitution/Validation Rules)
An authenticated attacker with specific privileges can inject executable ABAP code via rule definitions, leading to full system compromise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89107?
CVE-2026-89107 is a critical code injection vulnerability in SAP_SE SAP S/4HANA (Manage Substitution/Validation Rules), published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-94
Which versions are affected by CVE-2026-89107?
How do I fix CVE-2026-89107?
No fix has been published for CVE-2026-89107 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-89107 being exploited?
There is no known exploitation of CVE-2026-89107 in the wild and no public exploit code.
Sources
Also known as GHSA-mw39-66pq-v675.