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.
- Disclosed
- Last updated
- Blast radius
- Any system with express-firegate installed or running
- Ecosystems
- Attack vectors
- Affected entities
- express-firegate
The npm package express-firegate has been identified as containing malware. According to the GitHub Advisory (GHSA-59r7-h2ch-m4v2), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory indicates that all secrets and keys stored on affected computers should 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 compromise.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for complete system takeover.
Indicators of compromise
- Packages
- express-firegate
Remediation
- Immediately isolate any system with express-firegate installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the express-firegate package from all affected systems
- Conduct a full forensic analysis of affected systems to identify any additional malicious software
- Review system logs and access patterns for signs of unauthorized activity
- Consider full system rebuild if the system handles sensitive data or has privileged access
Sources
- GitHub Advisory GHSA-59r7-h2ch-m4v2 · GitHub Advisory Database
Cite this entry
"Malware in express-firegate." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 7, 2026; last updated July 7, 2026. https://supplychainattack.org/incident/malware-in-express-firegate-11mk99
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