MAL-2026-14061 Malicious code in hunterone-build-probe-9210 (npm)
Malicious package
Published
MAL-2026-14061 is a malicious package: hunterone-build-probe-9210 (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-14061/ (Markdown: https://insights.sbomify.com/MAL-2026-14061/index.md)
- Package
- hunterone-build-probe-9210
- Registry
- npm
What is MAL-2026-14061?
MAL-2026-14061 is a malicious package in hunterone-build-probe-9210, published on 15 Aug 2026.
Official description
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.What should I do about MAL-2026-14061?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.