CVE-2026-44748
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedSAP 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceSAP NetWeaver Application Server ABAP and ABAP Platform contains a signature validation vulnerability allowing an authenticated attacker with normal user privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This XML signature wrapping attack enables acceptance of tampered identity information, leading to unauthorized access to sensitive user data and potential disruption of system operations.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify SAP NetWeaver AS ABAP or ABAP Platform installationUse SAP transaction code SM37 or execute SAP system command 'sapcontrol -nr <instance> -function GetVersionInfo' to determine the product and kernel versionAffected if The system is running SAP NetWeaver Application Server ABAP or ABAP Platform without the relevant security patch applied
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Verify XML signature validation is enabledCheck SAP configuration settings related to XML signatures using transaction code SXMB_IFR (Integration Repository) or review custom ABAP code that processes XML signatures with digital signaturesAffected if XML signature validation is active in the ABAP system and the system has not been patched for CVE-2026-44748
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Review ABAP XML processing configurationUse transaction code SXMLCACHE or inspect custom ABAP programs that utilize CL_XML_DOCUMENT or related XML classes for signature verificationAffected if The system processes XML documents with signature verification enabled and the installed version is within an unpatched range
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Check current SAP Security Note statusUse SAP transaction code SNOTE or navigate to SAP Support Portal to verify if the security note addressing XML signature validation bypass has been implementedAffected if The security patch for this XML signature vulnerability has not been applied to the system
The environment is affected if it runs SAP NetWeaver AS ABAP or ABAP Platform with XML signature validation enabled and lacks the corresponding security patch for this vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply SAP security patches for this vulnerability and implement proper XML signature validation that validates the entire document structure and uses canonicalization to prevent XML signature wrapping attacks.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $15,616.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-44748 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-44748 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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