CVE-2026-89121 Missing Authorization Check in SAP S/4HANA (Linear Asset Management RAP Business Object)
Low-privilege local attackers can bypass authorization checks to modify unauthorized business object data in SAP S/4HANA.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89121?
CVE-2026-89121 is a medium-severity missing authorization vulnerability in SAP_SE SAP S/4HANA (Linear Asset Management RAP Business Object), published on 13 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
SAP S/4HANA does not perform sufficient instance-level authorization checks for certain modification operations on associated business object data. An attacker with low privileges and local access to the system could bypass authorization checks to modify data belonging to objects they are not authorized for. This results in a high impact on integrity. There is no impact on confidentiality and availability.
Weakness: CWE-862
Which versions are affected by CVE-2026-89121?
How do I fix CVE-2026-89121?
No fix has been published for CVE-2026-89121 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-89121 being exploited?
There is no known exploitation of CVE-2026-89121 in the wild and no public exploit code.
Sources
Also known as GHSA-hj55-fc48-cj53.