CVE-2026-23687 XML Signature Wrapping in SAP NetWeaver AS ABAP and ABAP Platform

High 8.8 Published 10 Feb 2026 Updated 9 Jun 2026

Authenticated attackers can bypass XML signature verification to access sensitive data and disrupt system operations in SAP NetWeaver AS ABAP.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-23687?

CVE-2026-23687 is a high-severity vulnerability in SAP_SE SAP NetWeaver AS ABAP and ABAP Platform, published on 10 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information, unauthorized access to sensitive user data and potential disruption of normal system usage.

Weakness: CWE-347

Which versions are affected by CVE-2026-23687?

It affects 1 product.

Products include Sap Sap Basis.

How do I fix CVE-2026-23687?

No fix has been published for CVE-2026-23687 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-23687 being exploited?

There is no known exploitation of CVE-2026-23687 in the wild and no public exploit code.

Sources

Also known as GHSA-464m-h7w2-29w7.