Malware in unleash-js
Malware was discovered in the unleash-js npm package. Systems with the package installed or running are considered fully compromised and require immediate remediation including secret rotation and package removal.
- Disclosed
- Last updated
- Blast radius
- Any system with unleash-js installed or running
- Ecosystems
- Attack vectors
- Affected entities
- unleash-jsnpm package
A malware incident was identified in the unleash-js npm package. According to the GitHub Advisory (GHSA-j5f8-3p7p-5c4c), 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, the advisory notes that full control of the computer may have been given to an outside entity, meaning removal of the package alone may not eliminate all malicious software that resulted from the installation.\n\nThis represents a critical supply chain compromise affecting npm users who depend on unleash-js.
Indicators of compromise
- Packages
- unleash-js
Remediation
- Immediately rotate all secrets and keys stored on affected computers from a different, uncompromised system
- Remove the unleash-js package from all affected systems
- Conduct a full security audit of any system that had unleash-js installed
- Review access logs and monitor for unauthorized activity on affected systems
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-j5f8-3p7p-5c4c · GitHub Advisory Database
Cite this entry
"Malware in unleash-js." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 29, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-unleash-js-etcnt7
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