Malware in devplatform-s3-client
Malware was discovered in the npm package devplatform-s3-client, resulting in full system compromise of any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- devplatform-s3-client
A malware-laden version of the npm package devplatform-s3-client was identified and published to the npm registry. The advisory indicates that any computer with this package installed or running should be considered fully compromised, suggesting the malware grants complete control to an outside entity.\n\nAffected users are advised to rotate all secrets and keys stored on compromised computers from a different, unaffected system. While the package should be removed, the advisory notes that full removal of all malicious software cannot be guaranteed due to the extent of the compromise.\n\nThe incident was disclosed via GitHub Advisory GHSA-557v-9r2x-4vj7 on 2026-08-19.
Indicators of compromise
- Packages
- devplatform-s3-client
Remediation
- Immediately rotate all secrets, API keys, and credentials stored on any computer that had devplatform-s3-client installed, using a different unaffected computer
- Remove the devplatform-s3-client package from all affected systems
- Perform a full security audit and malware scan on any system that had the package installed
- Review access logs and monitor for unauthorized activity on accounts and systems that may have been compromised
- Consider the affected systems as potentially fully compromised and plan for reimaging or replacement if critical infrastructure
Sources
- GitHub Advisory GHSA-557v-9r2x-4vj7 · GitHub Advisory Database
Cite this entry
"Malware in devplatform-s3-client." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 19, 2026; last updated August 19, 2026. https://supplychainattack.org/incident/malware-in-devplatform-s3-client-sij1yu
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