Malware in node-vfs-polyfill
Malware discovered in the npm package node-vfs-polyfill. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with node-vfs-polyfill installed or running
- Ecosystems
- Attack vectors
- Affected entities
- node-vfs-polyfill
The npm package node-vfs-polyfill has been identified as containing malware. According to the GitHub Advisory (GHSA-89vx-wfvc-j58f), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for complete system compromise.
Indicators of compromise
- Packages
- node-vfs-polyfill
Remediation
- Immediately isolate any system with node-vfs-polyfill installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the node-vfs-polyfill package from all systems
- Perform a full security audit and malware scan of affected systems
- Review system logs and access logs for signs of unauthorized activity
- Consider full system reimaging if the system handles sensitive data or credentials
Sources
- GitHub Advisory GHSA-89vx-wfvc-j58f · GitHub Advisory Database
Cite this entry
"Malware in node-vfs-polyfill." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 24, 2026; last updated June 24, 2026. https://supplychainattack.org/incident/malware-in-node-vfs-polyfill-1jl8sk
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