Malware in scan-only
The npm package scan-only was found to contain malware, potentially giving full control of affected systems to an outside entity. Any computer with this package installed or running should be considered fully compromised.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- scan-only
The npm package scan-only was identified as containing malware. According to the GitHub Advisory (GHSA-72g3-g9xj-wxp6), any computer that has this package installed or running should be considered fully compromised.\n\nThe advisory warns that all secrets and keys stored on affected computers should 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 represents a critical supply chain attack through a compromised package in the npm ecosystem.
Indicators of compromise
- Packages
- scan-only
Remediation
- Immediately isolate any computer that has scan-only installed or running from the network
- Rotate all secrets, API keys, and credentials stored on affected systems from a different, uncompromised computer
- Remove the scan-only package from all affected systems
- Perform a full security audit and malware scan of affected systems
- Consider the affected systems as potentially fully compromised and plan for complete reimaging if critical systems are involved
- Review access logs and audit trails for any unauthorized activity on affected systems
Sources
- GitHub Advisory GHSA-72g3-g9xj-wxp6 · GitHub Advisory Database
Cite this entry
"Malware in scan-only." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 17, 2026; last updated July 17, 2026. https://supplychainattack.org/incident/malware-in-scan-only-1ftive
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