# CVE-2026-120017: SAP NetWeaver AS ABAP authentication assertion verification bypass

Source: https://junglewise.ai/threats/cve-2026-120017-sap-netweaver-as-abap-and-abap-platform-does-not-perform  
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-2026-120017 · Severity: critical · CVSS 10 · Published 2026-11-10

SAP NetWeaver AS ABAP and ABAP Platform are enterprise resource planning systems that manage critical business operations. An unauthenticated attacker can submit specially crafted data to bypass authentication checks and impersonate any user, including administrators, under certain configurations. Successful exploitation leads to complete system compromise with potential impact on connected systems, affecting all confidentiality, integrity, and availability protections.

Technologies: [SAP ABAP Platform](https://junglewise.ai/threats/technologies/sap-abap-platform). Vendors: [SAP](https://junglewise.ai/threats/vendors/sap).

## Quick answers

**Is CVE-2026-120017 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-120017 being exploited in the wild.

**How severe is CVE-2026-120017?** Critical severity, with a CVSS score of 10, published 10 November 2026.

**Which products and versions are affected?** SAP NetWeaver AS ABAP; SAP ABAP Platform.

**Is there a fix for CVE-2026-120017?** 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-2026-120017 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-120017?** Check whether you run SAP ABAP Platform or SAP NetWeaver AS 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 authentication assertion verification bypass in SAP NetWeaver AS ABAP and ABAP Platform that occurs under certain configurations. An unauthenticated attacker with network access can craft malicious authentication assertions to bypass verification and assume arbitrary user identities. The vulnerability affects the authentication handling mechanism and allows complete system takeover without valid credentials.

## Affected products

- SAP NetWeaver AS ABAP
- SAP ABAP Platform

## Timeline

- 2026-11-10: disclosed

## References

- [https://me.sap.com/notes/3849308](https://me.sap.com/notes/3849308)
- [https://url.sap/sapsecuritypatchday](https://url.sap/sapsecuritypatchday)

## Related threats

- [SAP NetWeaver Application Server ABAP memory corruption denial of service](https://junglewise.ai/threats/cve-2026-76973-due-to-a-memory-corruption-vulnerability-in-application-server)
- [SAP NetWeaver Application Server ABAP memory corruption denial of service](https://junglewise.ai/threats/cve-2026-76970-due-to-a-memory-corruption-vulnerability-in-application-server)
- [SAP NetWeaver ABAP RFC protocol memory corruption](https://junglewise.ai/threats/cve-2026-76966-due-to-improper-rfc-protocol-validation-in-the-sap-kernel-used-by)
- [SAP NetWeaver Application Server ABAP authorization bypass](https://junglewise.ai/threats/cve-2026-76965-sap-netweaver-application-server-abap-and-abap-platform-does-not)
- [SAP NetWeaver SSRF in ABAP HTTP component](https://junglewise.ai/threats/cve-2026-109811-an-internal-abap-http-component-in-sap-netweaver-and-abap)