Malware in fusion-client
The npm package fusion-client contained malware that provided full system compromise to attackers. Any computer with the package installed should be considered fully compromised and all secrets and keys rotated from a different machine.
- Disclosed
- Last updated
- Blast radius
- Any system with fusion-client installed or running
- Ecosystems
- Attack vectors
- Affected entities
- fusion-client
The npm package fusion-client was found to contain malware. According to the GitHub Advisory (GHSA-j6qf-7f37-jfrh), 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 computer. While the package should be removed, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package will remove all malicious software resulting from the installation.\n\nThis represents a critical supply chain attack through a compromised npm package with severe implications for any system that installed it.
Indicators of compromise
- Packages
- fusion-client
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the fusion-client package from all affected systems
- Assume full system compromise and conduct forensic analysis
- Monitor affected systems for signs of persistent malware or backdoors
- Review system logs and network traffic for indicators of compromise
Sources
- GitHub Advisory GHSA-j6qf-7f37-jfrh · GitHub Advisory Database
Cite this entry
"Malware in fusion-client." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 9, 2026; last updated July 9, 2026. https://supplychainattack.org/incident/malware-in-fusion-client-jqkzdz
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