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Malware in s3-lambda-dynamodb-cdk

Malware was discovered in the npm package s3-lambda-dynamodb-cdk. Any computer with this package installed or running should be considered fully compromised, requiring immediate rotation of all secrets and keys from a different system.

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Disclosed
Last updated
Blast radius
Any system with the package installed or running
Ecosystems
Attack vectors
Affected entities
  • s3-lambda-dynamodb-cdk

A malicious version of the npm package s3-lambda-dynamodb-cdk was identified and published to the npm registry. The package contained malware that could compromise any system where it was installed or executed.\n\nAccording to the GitHub Security Advisory (GHSA-6xqw-c34f-9275), any computer running this package should be considered fully compromised. The advisory recommends immediate action to rotate all secrets and cryptographic keys from a different, unaffected computer.\n\nWhile the package should be removed, the advisory notes that full system compromise may have occurred, meaning removal of the package alone may not eliminate all malicious artifacts left by the malware.\n\nUsers should audit their systems for any unauthorized access or lateral movement that may have resulted from the compromise.

Indicators of compromise

Packages
  • s3-lambda-dynamodb-cdk

Remediation

  • Immediately rotate all secrets, API keys, and cryptographic credentials from a different, unaffected computer
  • Remove the s3-lambda-dynamodb-cdk package from all affected systems
  • Audit system logs and network traffic for signs of unauthorized access or data exfiltration
  • Perform a full security assessment of any system that had this package installed
  • Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure
  • Check for any lateral movement or persistence mechanisms that may have been installed

Sources

  1. GitHub Advisory GHSA-6xqw-c34f-9275 · GitHub Advisory Database

Cite this entry

"Malware in s3-lambda-dynamodb-cdk." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-s3-lambda-dynamodb-cdk-63g0h0

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