MAL-2026-18204: Malicious code in @factiii/runner can compromise computers
Summary
MAL-2026-18204: Installing or running the package can fully compromise a computer, exposing stored secrets and keys and potentially leaving additional malicious software behind. Affects @factiii/runner versions 0.28.0. No fix is published. How to fix ↓
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Background
@factiii/runner is a package in the npm ecosystem, written in JavaScript. It is distributed as a software dependency for applications that use npm packages. The supplied advisory identifies the package as containing malicious code and lists a specific affected release; it does not describe the package’s intended functionality or provide further usage details.
Vulnerability Detail
The malicious code can give an outside entity full control of a computer where @factiii/runner is installed or running. The advisory classifies the issue as embedded malicious code (CWE-506) and warns that stored secrets and keys may be exposed. Removing the package may not remove other malicious software introduced during installation, so affected computers should be treated as compromised.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @factiii/runnerIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
Remove @factiii/runner and rotate all secrets and keys stored on the affected computer from a different computer. Treat the affected system as fully compromised; package removal alone may not eliminate malicious software introduced during installation.
Conclusion
No fixed version is published for @factiii/runner. Remove the package, treat any computer where it was installed or run as compromised, and rotate stored secrets and keys from a different computer. Removing the package may not eliminate other malicious software introduced during installation. Vulert monitors the dependencies in package-lock.json and alerts when a new vulnerability affects them; check an application at https://vulert.com/scanner.
See every vulnerability recorded for @factiii/runner →
FAQ
@factiii/runner version 0.28.0 is listed as affected in the advisory.
@factiii/runner can give an outside entity full control of a computer and expose secrets and keys stored there.
No fixed version is published for @factiii/runner; remove the package and follow the compromise response guidance.
Do not keep @factiii/runner installed; remove it and rotate stored secrets and keys from a different computer.
Manually inspect package-lock.json for @factiii/runner. Vulert can scan a manifest or SBOM and monitor the dependency at Vulert Scanner.
