SB2026041494 - Two vulnerabilities in SAP NetWeaver AS ABAP

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2026-27680)

The vulnerability allows a remote attacker to inject malicious style information.

The vulnerability exists due to CSS injection in SAP NetWeaver Application Server ABAP when rendering content. A remote attacker can trick the victim into opening crafted content to inject malicious style information.

2) Open redirect (CVE-ID: CVE-2026-34257)

The vulnerability allows a remote attacker to redirect users to an arbitrary site and disclose limited information.

The vulnerability exists due to open redirect in SAP NetWeaver Application Server ABAP when handling requests. A remote attacker can trick the victim into opening a crafted link to redirect users to an arbitrary site and disclose limited information.

User interaction is required.

Remediation

Install update from vendor's website.

References

• https://support.sap.com/en/my-support/knowledge-base/security-notes-news/april-2026.html
• https://me.sap.com/notes/3665042
• https://me.sap.com/notes/3692004