Malware in webpack-cache-clean
The npm package webpack-cache-clean contains malware that grants full system compromise to an attacker. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with webpack-cache-clean installed or executed
- Ecosystems
- Attack vectors
- Affected entities
- webpack-cache-clean
The npm package webpack-cache-clean has been identified as containing malware. According to the GitHub Advisory (GHSA-82q4-cw9w-vjj4), any computer that has 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 initial compromise, given that the attacker may have gained full control of the system.\n\nThis is a critical supply chain incident affecting the npm ecosystem.
Indicators of compromise
- Packages
- webpack-cache-clean
Remediation
- Immediately isolate any computer that has webpack-cache-clean installed or has executed it
- Rotate all secrets, API keys, credentials, and signing keys from a different, uncompromised computer
- Remove the webpack-cache-clean package from all systems
- Perform a full security audit and malware scan of affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system compromised and plan for full rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-82q4-cw9w-vjj4 · GitHub Advisory Database
Cite this entry
"Malware in webpack-cache-clean." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 6, 2026; last updated July 6, 2026. https://supplychainattack.org/incident/malware-in-webpack-cache-clean-spbysw
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