Hot Note
Affected system
ABAP
CVSS
9.9
Component
BC-SEC-LGN-SML
Patch Day
2026-06
Released on
2026/06/09
SAP Note
3746332
Workaround
Yes
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Advisory

On 09.06.2026 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within ABAP.

SAP Note 3746332 addresses "3746332 - [CVE-2026-44748] XML Signature Wrapping in SAML Authentication in SAP NetWeaver AS ABAP and ABAP Platform" to prevent xml signature wrapping (xsw) with a hot news risk for exploitation.

A workaround does exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process, the team suggests.

Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production.

Risk specification

AP NetWeaver AS ABAP and ABAP Platform allow an authenticated attacker to submit modified signed XML documents to the verifier, resulting in unauthorized access to sensitive user data, unauthorized data modification, and potential service disruption.

Solution

The XML Signature verification functions have been enhanced to properly validate signed XML documents.  Circumstances exist that prevent the timely installation of a patch provided by the manufacturer. In such cases, you may consider applying the suggested workaround as a temporary or compensating mitigation: "Disabling SAML authentication as a temporary measure.".

Affected System

The advisory 3746332 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.

SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.

The advisory is valid for

 

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Disclaimer

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