# CVE-2026-27674: SAP NetWeaver AS Java code injection in Web Dynpro Java

Source: https://junglewise.ai/threats/cve-2026-27674-sap-netweaver-as-java-code-injection-in-web-dynpro-java  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-14. Updated: 2026-06-03  
License: CC BY 4.0 with a link back

CVE-2026-27674 · Severity: medium · CVSS 6.1 · Published 2026-04-14

A vulnerability in SAP NetWeaver Application Server Java could allow an attacker to trick a user's browser into executing malicious code. This occurs when the application improperly handles user input within the Web Dynpro Java component. If successful, an attacker could compromise a user's session, potentially leading to unauthorized access to sensitive information or the ability to perform actions on the user's behalf.

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-2026-27674 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27674 being exploited in the wild.

**How severe is CVE-2026-27674?** Medium severity, with a CVSS score of 6.1, published 14 April 2026.

**Which products and versions are affected?** SAP Netweaver Application Server Java 7.50.

**Is there a fix for CVE-2026-27674?** 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-2026-27674 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-27674?** 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

A code injection vulnerability (CWE-94) exists in the Web Dynpro Java component of SAP NetWeaver Application Server Java. The flaw stems from improper validation of user-supplied input, which allows an unauthenticated remote attacker to provide crafted content that the application subsequently references. When a victim interacts with the affected functionality, the attacker-controlled content is executed within the context of the victim's browser session. This can lead to session hijacking and the execution of arbitrary client-side scripts. The vulnerability has been identified in version 7.50, and SAP has released security notes to address the issue.

## Affected products

- SAP NetWeaver Application Server Java (Web Dynpro Java) 7.50

## Timeline

- 2026-04-13: disclosed
- 2026-04-14: advisory

## References

- [https://me.sap.com/notes/3719397](https://me.sap.com/notes/3719397)
- [https://url.sap/sapsecuritypatchday](https://url.sap/sapsecuritypatchday)

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