MAL-2026-16478

    Dashboard / Malicious Package / MAL-2026-16478

    MAL-2026-16478

    Published: 23 Sept 2026Last Modified: 23 Sept 2026

    Summary: Malicious code in event-hunter (npm)

    Details: Source: amazon-inspector (f94b74862f327effaa43c1d01c4fd769626f73214d0706b80fef8b8a395cc3e8) On `npm install`, the declared postinstall hook runs `node index.js`, which reads `os.hostname()` and a timestamp, base64-encodes the JSON payload, and issues an HTTPS GET to `https://estimator-nemeses-unwatched.ngrok-free.dev/canary?d=<base64>`. The destination is a hardcoded ngrok tunnel unrelated to any registry or vendor infrastructure, and the beacon fires automatically without any caller action or opt-in. The package's own metadata describes it as a `Dependency Confusion to RCE` proof-of-concept, and the install-time callback carries the installer's internal hostname to an external third party.

    References: https://www.npmjs.com/package/event-hunter/v/1.0.0

    Affected packages

    Package

    Name: event-hunter

    Purl: pkg:npm/event-hunter

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    1.0.0