Malware in chai-foundry
Malware was discovered in the npm package chai-foundry, affecting any computer with the package installed or running. The compromise grants full system control to an outside entity and requires immediate remediation including secret rotation and package removal.
- Disclosed
- Last updated
- Blast radius
- Any system with chai-foundry installed or executed
- Ecosystems
- Attack vectors
- Affected entities
- chai-foundrynpm package containing malware
A critical malware incident was identified in the npm package chai-foundry. According to the GitHub Advisory (GHSA-x29h-74hf-jq7x), any computer with this package installed or running should be considered fully compromised.\n\nThe malware grants complete control of affected systems to an outside entity. The advisory recommends immediate action: all secrets and keys stored on compromised computers should be rotated from a different, unaffected machine. 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.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for widespread impact across development and production environments.
Indicators of compromise
- Packages
- chai-foundry
Remediation
- Immediately rotate all secrets, API keys, and credentials from a different, unaffected computer
- Remove the chai-foundry package from all affected systems
- Audit system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected computer(s) fully compromised and plan for complete rebuild or forensic analysis
- Check for any other suspicious packages or modifications on affected systems
- Notify any systems or services that may have been accessed using credentials from the compromised computer
Sources
- GitHub Advisory GHSA-x29h-74hf-jq7x · GitHub Advisory Database
Cite this entry
"Malware in chai-foundry." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 18, 2026; last updated August 18, 2026. https://supplychainattack.org/incident/malware-in-chai-foundry-pjbb31
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