Malware in fhirproxy
Malware was discovered in the fhirproxy npm package. Systems with the package installed or running are considered fully compromised, with potential for complete system takeover.
- Disclosed
- Last updated
- Blast radius
- Any system with fhirproxy installed or running
- Ecosystems
- Attack vectors
- Affected entities
- fhirproxy
The fhirproxy npm package was found to contain malware. According to the GitHub Advisory (GHSA-g7wh-3cfq-x8m2), 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. 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\nThe full scope of the malware's capabilities and the extent of its distribution remain under investigation.
Indicators of compromise
- Packages
- fhirproxy
Remediation
- Immediately isolate any system with fhirproxy installed from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the fhirproxy package from all affected systems
- Conduct a full forensic analysis of affected systems to identify any additional malicious software
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
Sources
- GitHub Advisory GHSA-g7wh-3cfq-x8m2 · GitHub Advisory Database
Cite this entry
"Malware in fhirproxy." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 15, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-fhirproxy-l4owwi
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