Authenticated identity tampering via XML signature wrapping
Published Feb 10, 2026 · Updated Feb 10, 2026
XML signature wrapping in SAP NetWeaver AS ABAP and ABAP Platform allows remote authenticated users to submit tampered identity data. The verifier accepts modified signed XML documents associated with a valid signed message, failing to bind the verified signature to the identity information it processes. Normal application privileges are required; successful exploitation grants unauthorized access to sensitive user data and can interrupt normal system use.
Summary
What happened
XML signature wrapping in SAP NetWeaver AS ABAP and ABAP Platform allows remote authenticated users to submit tampered identity data. The verifier accepts modified signed XML documents associated with a valid signed message, failing to bind the verified signature to the identity information it processes. Normal application privileges are required; successful exploitation grants unauthorized access to sensitive user data and can interrupt normal system use.
The record
- CVE
- CVE-2026-23687
- Published
- Feb 10, 2026
- Updated
- Feb 10, 2026
- Vendor
- cap-js
- Product
- SAP NetWeaver and ABAP Platform
- Classifications
- CWE-347, T1606
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 10, 2026CVE publishedPublication date reported by the CVE source.
- Feb 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=SAP_BASIS 700
- Affected versionversion=SAP_BASIS 701
- Affected versionversion=SAP_BASIS 702
- Affected versionversion=SAP_BASIS 731
- Affected versionversion=SAP_BASIS 740
- Affected versionversion=SAP_BASIS 750
- Affected versionversion=SAP_BASIS 751
- Affected versionversion=SAP_BASIS 752
- Affected versionversion=SAP_BASIS 753
- Affected versionversion=SAP_BASIS 754
- Affected versionversion=SAP_BASIS 755
- Affected versionversion=SAP_BASIS 756
- Affected versionversion=SAP_BASIS 757
- Affected versionversion=SAP_BASIS 758
- Affected versionversion=SAP_BASIS 804
- Affected versionversion=SAP_BASIS 816
- Affected versionversion=SAP_BASIS 916
- Affected versionversion=SAP_BASIS 917
- Affected versionversion=SAP_BASIS 918
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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