Malware in maalxios
Malware was discovered in the npm package maalxios. 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 maalxios installed or running
- Ecosystems
- Attack vectors
- Affected entities
- maalxios
The npm package maalxios was found to contain malware. According to the GitHub advisory, any computer with 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. The malicious package should be removed, though 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 complete system compromise.
Indicators of compromise
- Packages
- maalxios
Remediation
- Immediately rotate all secrets and keys from a different, uncompromised computer
- Remove the maalxios package from all affected systems
- Audit system logs for unauthorized access or activity
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
- Check for any other suspicious packages or modifications on affected systems
Sources
- GitHub Advisory GHSA-5f53-x2hv-vqqx · GitHub Advisory Database
Cite this entry
"Malware in maalxios." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 30, 2026; last updated July 30, 2026. https://supplychainattack.org/incident/malware-in-maalxios-1cy806
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