# CVE-2026-109810: SAP NetWeaver Application Server Java path traversal in Web Dynpro styling

Source: https://junglewise.ai/threats/cve-2026-109810-sap-netweaver-application-server-java-web-dynpro-java-does-not  
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-2026-109810 · Severity: medium · CVSS 6.1 · Published 2026-11-10

SAP NetWeaver Application Server Java's Web Dynpro component fails to properly validate request parameters when resolving styling resources, allowing an unauthenticated attacker to inject malicious styling content into a trusted application. An attacker could craft a phishing link that tricks authenticated users into clicking it, causing their browser to display altered user interfaces or leak limited page content, compromising the integrity and confidentiality of the application without affecting availability.

Technologies: [SAP Netweaver Application Server Java](https://junglewise.ai/threats/technologies/netweaver-as-java-servercore). Vendors: [SAP](https://junglewise.ai/threats/vendors/sap).

## Quick answers

**Is CVE-2026-109810 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109810 being exploited in the wild.

**How severe is CVE-2026-109810?** Medium severity, with a CVSS score of 6.1, published 10 November 2026.

**Which products and versions are affected?** SAP Netweaver Application Server Java <UNKNOWN>.

**Is there a fix for CVE-2026-109810?** 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-2026-109810 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-109810?** Check whether you run SAP Netweaver Application Server Java at an affected version. 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 a client-side request validation bypass in Web Dynpro Java's styling resource resolution mechanism. An unauthenticated attacker can craft a malicious URL that, when clicked by an authenticated user, causes the victim's browser to load attacker-controlled styling resources within the trusted application context, enabling UI redressing (clickjacking/phishing) and limited content exfiltration. The attack requires user interaction (clicking a link) but no prior authentication by the attacker.

## Affected products

- SAP NetWeaver Application Server Java <UNKNOWN>

## Timeline

- 2026-11-10: disclosed

## References

- [https://me.sap.com/notes/3797108](https://me.sap.com/notes/3797108)
- [https://url.sap/sapsecuritypatchday](https://url.sap/sapsecuritypatchday)

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