CVE-2026-76974 in Fiori Launchpad
Summary
by MITRE • 09/22/2026
SAP Fiori Launchpad does not sufficiently validate certain user-controlled input. An unauthenticated attacker could craft a malicious link that, when clicked by an authenticated user, causes the browser to load attacker-controlled content from an external location. This could be used to exfiltrate sensitive information from the victim's session, resulting in a high impact on confidentiality. There is no impact on integrity and availability.
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Analysis
by VulDB Data Team • 09/22/2026
The vulnerability identified within SAP Fiori Launchpad stems from insufficient validation of user-controlled input, specifically manifesting as an Open Redirect flaw. This technical deficiency allows an unauthenticated attacker to construct malicious URLs that exploit the application's redirection logic. When a victim who is already authenticated with valid credentials clicks on such a crafted link, their browser is instructed to navigate away from the legitimate SAP environment and load content hosted by the attacker. The core of this issue lies in the lack of rigorous checks against allowlists or strict pattern matching for redirect targets, enabling the redirection service to accept arbitrary external domains rather than restricting navigation to trusted internal resources.
From an operational perspective, while the immediate action is a browser redirect, the primary security concern arises from how this behavior can be leveraged in conjunction with other attack vectors such as phishing or cross-site scripting. By directing the user's session to a malicious site that mimics the appearance of SAP Fiori Launchpad, attackers can trick users into re-entering their credentials on a fraudulent login page. This technique effectively facilitates credential harvesting, allowing the attacker to capture sensitive authentication data including usernames and passwords. Furthermore, if the redirect occurs in a context where session cookies are transmitted or if subsequent interactions occur within the same browser window without proper isolation, there is potential for further exploitation of the active user session.
The impact assessment indicates that this vulnerability has high implications for confidentiality due to the risk of sensitive information exfiltration through credential theft and potential session hijacking scenarios. However, it does not directly compromise system integrity or availability in its isolated form, as the attacker cannot arbitrarily modify application data nor cause service denial without additional exploitation steps involving social engineering or further code injection techniques. The attack relies heavily on user interaction to trigger the redirect, meaning that automated remote exploitation is limited unless combined with other vulnerabilities like stored cross-site scripting which could automatically execute such redirects upon page load.
To mitigate this risk, SAP and system administrators should implement strict input validation mechanisms for all parameters involved in redirection logic. This includes enforcing allowlists of permitted domains or ensuring that relative paths are correctly resolved to internal resources only. Additionally, implementing Content Security Policy headers can help restrict where the browser is allowed to navigate or load content from. User awareness training remains critical as a defense-in-depth measure, educating employees on recognizing suspicious links and verifying URL authenticity before interacting with them. Regular security audits focusing on web application firewall rules and source code review for redirect functions will further reduce the attack surface associated with this class of vulnerability.
This flaw aligns with Common Weakness Enumeration identifier CWE-601, which describes Open Redirect vulnerabilities where a web application redirects users to URLs provided by an attacker without proper validation. In terms of tactical classification under MITRE ATT&CK, this behavior supports techniques related to Credential Access via Phishing (T1566) and potentially Account Manipulation if the harvested credentials are used for unauthorized access. Addressing these weaknesses requires both technical controls in application development practices and organizational policies regarding secure coding standards and incident response preparedness for potential credential compromise events.