Malware in chai-leaf
Malware discovered in the npm package chai-leaf. Systems with this package installed are considered fully compromised and require immediate remediation including secret rotation and package removal.
- Disclosed
- Last updated
- Blast radius
- Any system with chai-leaf installed or running
- Ecosystems
- Attack vectors
- Affected entities
- chai-leafnpm package
The npm package chai-leaf has been identified as containing malware. According to the GitHub advisory, any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends immediate action: all secrets and keys stored on affected computers should be rotated from a different, uncompromised system. The malicious package should be removed, though complete removal of all malicious artifacts cannot be guaranteed due to the potential for full system compromise.\n\nThis represents a critical supply chain attack through a compromised npm package with broad impact on any system that has installed or executed it.
Indicators of compromise
- Packages
- chai-leaf
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the chai-leaf package from all affected systems
- Conduct a full security audit of any system that had chai-leaf installed
- Review system logs for suspicious activity during the period chai-leaf was installed
- Consider full system reimaging if compromise is suspected
- Monitor for any unauthorized access or data exfiltration
Sources
- GitHub Advisory GHSA-m3c7-2j38-rjh7 · GitHub Advisory Database
Cite this entry
"Malware in chai-leaf." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malware-in-chai-leaf-7lpnkb
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