fhirproxy-utils (npm) · Malicious Code
Affects fhirproxy-utilsSource GCVE Database
Malicious package : remove fhirproxy-utils and rotate any secrets on hosts that installed it.
Data as of 15 Jul 2026, 12:54 UTC
Malicious package
Published to npm · OSV MAL-2026-5461
What to do
Remove fhirproxy-utils from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmfhirproxy-utils | Affected
| Fixed in– |
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Description
The fhirproxy-utils npm package version 1.0.8 contains malicious code that performs extensive reconnaissance and data exfiltration upon installation and usage. It collects sensitive environment details including host information, user data, network configuration, git identity, CI/CD environment variables, and cloud instance metadata. The stolen data is encoded and exfiltrated to a Cloudflare Workers command-and-control endpoint. The package also masquerades as common build tools to evade detection. Any system with this package installed should be considered fully compromised.