Malware in chai-spycore
Malware was discovered in the npm package chai-spycore, affecting any computer with the package installed or running. The compromise is considered critical as it grants full system control to an outside entity.
- Disclosed
- Last updated
- Blast radius
- Any system with chai-spycore installed or running
- Ecosystems
- Attack vectors
- Affected entities
- chai-spycore
The npm package chai-spycore was found to contain malware. According to the GitHub advisory (GHSA-w3fq-7xj5-8gmv), any computer that has 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, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise, given the level of system access the malware appears to have obtained.\n\nAffected users should treat any system that installed or ran chai-spycore as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- chai-spycore
Remediation
- Immediately isolate any computer that has chai-spycore installed or running from the network
- Rotate all secrets, API keys, credentials, and cryptographic keys from a different, uncompromised computer
- Remove the chai-spycore package from all affected systems
- Conduct a full forensic investigation of affected systems to identify any additional malicious software or persistence mechanisms
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if the compromise is confirmed
Sources
- GitHub Advisory GHSA-w3fq-7xj5-8gmv · GitHub Advisory Database
Cite this entry
"Malware in chai-spycore." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 7, 2026; last updated July 7, 2026. https://supplychainattack.org/incident/malware-in-chai-spycore-1bylbs
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- activecritical
Malware in express-firegate
Malware discovered in the npm package express-firegate. Systems with this package installed are considered fully compromised and require immediate remediation.
npmCompromised package - activecritical
Malware in express-deflect
Malware discovered in the npm package express-deflect. Systems with this package installed or running are considered fully compromised and require immediate remediation.
npmCompromised package - containedcritical
Malware in pino-utils
The npm package pino-utils was compromised and distributed with malware. Any system with the package installed should be considered fully compromised, with all secrets and keys requiring immediate rotation from a different computer.
npmCompromised package - activecritical
Malware in color-cli-log
The npm package color-cli-log contains malware that grants full control of affected systems. Any computer with this package installed or running should be considered fully compromised.
npmCompromised package