Advisory
A note with CVSS 4.3 for component CA-UI5-COR was released by SAP on 08.09.2026. The correction/advisory 3783189 was described with "[CVE-2026-76977] Clickjacking vulnerability in SAPUI5(Frame Options Allowlist)" and affects the system type ABAP.
A workaround exists, according to SAP Security Advisory team. It is advisable to implement the correction as none.
The vulnerability addressed is clickjacking vulnerability within ABAP.
Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production.
Risk specification
SAP UI5 does not adequately validate the parent frame's origin against the configured allowlist. An unauthenticated attacker could exploit this vulnerability by hosting a malicious page to bypass framing restrictions. If an authenticated victim visits the attacker's page and interacts with it, the attacker could trick the victim into performing unintended actions, resulting in a low impact on integrity. There is no impact on confidentiality or availability.
Solution
With this fix, the FrameOptions allowlist check applies stricter hostname matching. Update SAPUI5 to one of the following patch levels or higher: SAP_UI Minimum SAPUI5 Version 200 1.38.69 754 1.71.85 755 1.84.61 756 1.96.50 757 1.108.55 758 1.120.49 816 1.136.21 Cloud 1.148.6 Cloud 1.151.0 (included in main code line) Although an alternative solution exists, it is advisable to apply the correction! This is the workaround, which was suggested by the SAP security experts: "None".
Affected System
The advisory 3783189 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.
SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.
The advisory is valid for
- SAP_UI 750 21
- SAP_UI 754 31
- SAP_UI 755 27
- SAP_UI 756 21
- SAP_UI 757 14
- SAP_UI 758 11
- SAP_UI 816 5
- UI_700 200 13
