Advisory

SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for vulnerabilities reported by external researchers and their customers every second Tuesday of the month.

SAP Note 3747787 was released on 29.04.2026 and deals with "3747787 - Malicious open-source packages in SAP Cloud Application Programming Model & MTA Build Tool" within BTP. We advice you to follow the instructions, to resolve remote code execution vulnerability with a hot news potential for exploitation in component BC-XS-CDX-NJS.

According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as monthly patch process.

Risk specification

Malicious versions of four SAP Cloud Application Programming Model (CAP) and MTA Build Tool npm packages distributed through the npm ecosystem execute unauthorized code upon installation on developer workstations or within CI/CD pipelines. This behavior can lead to credential exfiltration and further propagation into adjacent software repositories.

Solution

Patched versions of the affected npm packages have been released, and the malicious package versions have been removed from the npm registry, preventing any further distribution of the compromised packages.

The advisory is valid for

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SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

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