CVE-2026-27674 Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java)
Unauthenticated attackers can inject code executed in victims' browsers via crafted input, leading to session compromise and arbitrary client-side code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-27674?
CVE-2026-27674 is a medium-severity code injection vulnerability in Sap Netweaver Application Server Java, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Due to a Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java), an unauthenticated attacker could supply crafted input that is interpreted by the application and causes it to reference attacker-controlled content. If a victim accesses the affected functionality, that attacker-controlled content could be executed in the victim�s browser, potentially resulting in session compromise. This could allow the attacker to execute arbitrary client-side code, impacting the confidentiality and integrity of the application, with no impact to availability.
Weakness: CWE-94
Which versions are affected by CVE-2026-27674?
It affects 1 product.
Products include Sap Netweaver Application Server Java.
How do I fix CVE-2026-27674?
No fix has been published for CVE-2026-27674 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-27674 being exploited?
There is no known exploitation of CVE-2026-27674 in the wild and no public exploit code.
Other vulnerabilities in Sap Netweaver Application Server Java
Sources
Also known as GHSA-2c34-jhww-wwcm.