SAP NetWeaver ABAP Signed XML Tampering via Authenticated Attack
CVE-2026-44748 Published on June 9, 2026

XML Signature Wrapping in SAML Authentication in SAP NetWeaver AS ABAP and ABAP Platform
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 leading to unauthorized access to sensitive user data and potential disruption of normal system usage. This causes a high impact on confidentiality, integrity and availability of the application.

NVD

Vulnerability Analysis

CVE-2026-44748 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Improper Verification of Cryptographic Signature

The software does not verify, or incorrectly verifies, the cryptographic signature for data.


Products Associated with CVE-2026-44748

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SAP NetWeaver
 

Affected Versions

SAP_SE SAP NetWeaver AS ABAP and ABAP Platform: