# CVE-2026-109802: SAP NetWeaver Application Server for ABAP input validation denial of service

Source: https://junglewise.ai/threats/cve-2026-109802-sap-netweaver-application-server-for-abap-does-not-properly  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-109802 · Severity: medium · CVSS 6.5 · Published 2026-11-10

SAP NetWeaver Application Server for ABAP is a core business application platform used by enterprises to run critical operations. An authenticated attacker can send malicious requests to crash the system and make it unavailable, disrupting business operations. The vulnerability requires valid user credentials to exploit.

Technologies: [SAP NetWeaver Application Server for ABAP](https://junglewise.ai/threats/technologies/netweaver-application-server-for-abap). Vendors: [SAP](https://junglewise.ai/threats/vendors/sap).

## Quick answers

**Is CVE-2026-109802 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109802 being exploited in the wild.

**How severe is CVE-2026-109802?** Medium severity, with a CVSS score of 6.5, published 10 November 2026.

**Which products and versions are affected?** SAP NetWeaver Application Server for ABAP.

**Is there a fix for CVE-2026-109802?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-109802 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-109802?** Check whether you run SAP NetWeaver Application Server for ABAP. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an input validation failure in SAP NetWeaver Application Server for ABAP that allows authenticated users to trigger internal processing errors, leading to work process crashes and denial of service. The attack requires network access and valid authentication credentials. A fix is available through SAP security patch channels.

## Affected products

- SAP NetWeaver Application Server for ABAP

## Timeline

- 2026-11-10: disclosed

## References

- [https://me.sap.com/notes/3793716](https://me.sap.com/notes/3793716)
- [https://url.sap/sapsecuritypatchday](https://url.sap/sapsecuritypatchday)

## Related threats

- [SAP NetWeaver Application Server session hijacking via buffered request reprocessing](https://junglewise.ai/threats/cve-2026-66767-sap-netweaver-application-server-session-hijacking-via-buffered)
- [SAP NetWeaver AS for ABAP OS command injection](https://junglewise.ai/threats/cve-2026-40135-sap-netweaver-as-for-abap-os-command-injection)
- [SAP NetWeaver AS ABAP SSRF in ABAP Test Report](https://junglewise.ai/threats/cve-2026-24316-sap-netweaver-as-abap-ssrf-in-abap-test-report)
- [SAP NetWeaver AS ABAP missing authorization check in ABAP function module](https://junglewise.ai/threats/cve-2026-24310-sap-netweaver-as-abap-missing-authorization-check-in-abap)
- [SAP NetWeaver AS for ABAP missing authorization check in function module](https://junglewise.ai/threats/cve-2026-24309-sap-netweaver-as-for-abap-missing-authorization-check-in-function)