CVE-2026-44748 XML Signature Wrapping in SAML Authentication in SAP NetWeaver AS ABAP and ABAP Platform
Authenticated attackers can bypass SAML signature verification to access sensitive data and disrupt system operations in SAP NetWeaver.
- 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-2026-44748?
CVE-2026-44748 is a critical authentication bypass vulnerability in SAP_SE SAP NetWeaver AS ABAP and ABAP Platform, published on 9 Jun 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 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.
Weakness: CWE-347
Which versions are affected by CVE-2026-44748?
How do I fix CVE-2026-44748?
No fix has been published for CVE-2026-44748 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-44748 being exploited?
There is no known exploitation of CVE-2026-44748 in the wild and no public exploit code.
Sources
Also known as GHSA-c2v4-jg9m-jgrr.