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Malware in chai-guard

Malware discovered in the npm package chai-guard. Any computer with this package installed or running should be considered fully compromised. All secrets and keys stored on affected systems should be rotated immediately from a different computer.

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Disclosed
Last updated
Blast radius
Any system with chai-guard installed or running is considered fully compromised; all secrets and keys require rotation.
Ecosystems
Attack vectors
Affected entities
  • chai-guardnpm package

The npm package chai-guard has been identified as containing malware. According to the GitHub Advisory (GHSA-29vw-5q5r-8jpw), any computer that has this package installed or running should be considered fully compromised.\n\nImmediate action is required: all secrets and keys stored on affected computers must be rotated immediately from a different, uncompromised computer. The package should be removed, but full system compromise cannot be ruled out.\n\nDue to the potential for complete system takeover, removing the package alone may not eliminate all malicious software that resulted from its installation. A comprehensive security review and potential system rebuild may be necessary.

Indicators of compromise

Packages
  • chai-guard

Remediation

  • Immediately rotate all secrets and keys from a different, uncompromised computer
  • Remove the chai-guard package from all affected systems
  • Conduct a comprehensive security audit of all systems that had chai-guard installed
  • Consider full system rebuild or forensic analysis for critical systems
  • Review all access logs and activity on affected systems for signs of unauthorized access
  • Monitor for any indicators of compromise or data exfiltration

Sources

  1. GitHub Advisory GHSA-29vw-5q5r-8jpw · GitHub Advisory Database

Cite this entry

"Malware in chai-guard." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 6, 2026; last updated July 6, 2026. https://supplychainattack.org/incident/malware-in-chai-guard-1lt3la

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