CVE-2026-44748Network attack vector

Authenticated identity tampering via wrapped SAML assertions

Published Jun 9, 2026 · Updated Jun 9, 2026

XML signature wrapping in SAML authentication in SAP NetWeaver AS ABAP and ABAP Platform allows remote authenticated users to alter identity data. The verifier accepts modified signed XML documents while treating their tampered identity information as valid. Normal privileges and a valid signed message are required; accepted tampering grants unauthorized access to sensitive data, while SAP does not specify how application use is disrupted.

CVSS severity9.9
Critical
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

XML signature wrapping in SAML authentication in SAP NetWeaver AS ABAP and ABAP Platform allows remote authenticated users to alter identity data. The verifier accepts modified signed XML documents while treating their tampered identity information as valid. Normal privileges and a valid signed message are required; accepted tampering grants unauthorized access to sensitive data, while SAP does not specify how application use is disrupted.

The record

CVE
CVE-2026-44748
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
cap-js
Product
SAP NetWeaver and ABAP Platform
Classifications
CWE-347, CAPEC-475, T1606.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=SAP_BASIS 702
  2. Affected versionversion=SAP_BASIS 731
  3. Affected versionversion=SAP_BASIS 740
  4. Affected versionversion=SAP_BASIS 750
  5. Affected versionversion=SAP_BASIS 751
  6. Affected versionversion=SAP_BASIS 752
  7. Affected versionversion=SAP_BASIS 753
  8. Affected versionversion=SAP_BASIS 754
  9. Affected versionversion=SAP_BASIS 755
  10. Affected versionversion=SAP_BASIS 756
  11. Affected versionversion=SAP_BASIS 757
  12. Affected versionversion=SAP_BASIS 758
  13. Affected versionversion=SAP_BASIS 816
  14. Affected versionversion=SAP_BASIS 918
  15. Affected versionversion=SAP_BASIS 919

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

cap-js · SAP NetWeaver and ABAP Platformversion=SAP_BASIS 702; version=SAP_BASIS 731; version=SAP_BASIS 740; version=SAP_BASIS 750; version=SAP_BASIS 751; version=SAP_BASIS 752; version=SAP_BASIS 753; version=SAP_BASIS 754; version=SAP_BASIS 755; version=SAP_BASIS 756; version=SAP_BASIS 757; version=SAP_BASIS 758; version=SAP_BASIS 816; version=SAP_BASIS 918; version=SAP_BASIS 919

Published CVSS scores

9.9SAP SECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CAPEC-475Signature Spoofing by Improper Validation
T1606.002Forge Web Credentials: SAML Tokens

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo