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OpenAdvisories
Malicious MAL-2026-14061

hunterone-build-probe-9210

npm package · versions 1.0.5, 1.0.3, 1.0.6, 1.0.1, 1.0.0, 1.0.2, 1.0.7, 1.0.4

Reported Aug 15, 2026 · Updated Aug 15, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (3f27c0ce93b98a1c9d602604eef2a625c6a7c2ebb7a1be38eeeaf06deb4e436e)
probe.js runs automatically via package.json preinstall and postinstall hooks ("node probe.js || true"). On execution it collects os.hostname(), os.platform(), os.networkInterfaces(), cwd, uid, the output of `id`, a full process.env dump, /proc/self/environ, a root filesystem listing, and the contents of ~/.npmrc, and specifically reads AWS_CONTAINER_CREDENTIALS_RELATIVE_URI. The collected JSON payload is POSTed via https.request to a hardcoded webhook.site collector at https://webhook.site/22508080-b099-4ec3-8ab7-7354af2886a9/buildenv. ~/.npmrc contains the installer's npm registry auth token, and the AWS ECS credential-endpoint variable exposes the path to fetch task-role AWS credentials; both are installer-owned secrets shipped to an anonymous third-party collector at install time.