Malware in authmatrix
Malware was discovered in the npm package authmatrix, resulting in full system compromise for any computer with the package installed or running. All secrets and keys on affected systems should be rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with authmatrix installed or running
- Ecosystems
- Attack vectors
- Affected entities
- authmatrix
A critical malware incident was identified in the npm package authmatrix. According to the GitHub Security Advisory (GHSA-qr38-fjw7-r54v), 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, the advisory notes that full control of the computer may have been given to an outside entity, meaning there is no guarantee that removing the package alone will eliminate all malicious software resulting from the installation.\n\nAffected users should treat their systems as potentially fully compromised and take comprehensive remediation steps accordingly.
Indicators of compromise
- Packages
- authmatrix
Remediation
- Immediately rotate all secrets and keys stored on affected computers from a different, uncompromised system
- Remove the authmatrix package from all affected systems
- Conduct a full security audit and malware scan of any system that had authmatrix installed
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if the system contained highly sensitive data or credentials
Sources
- GitHub Advisory GHSA-qr38-fjw7-r54v · GitHub Advisory Database
Cite this entry
"Malware in authmatrix." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 29, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-authmatrix-18ylq4
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