MAL-2026-16216 Malicious code in tetomood (npm)
Malicious package
Published
MAL-2026-16216 is a malicious package: tetomood (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-2026-16216/ (Markdown: https://insights.sbomify.com/MAL-2026-16216/index.md)
- Package
- tetomood
- Registry
- npm
What is MAL-2026-16216?
MAL-2026-16216 is a malicious package in tetomood, published on 16 Sep 2026.
Official description
package.json declares both preinstall and postinstall scripts that invoke wget to POST the installer's current working directory ($(pwd)) and machine hostname ($(hostname)) to a hardcoded Discord webhook endpoint on discord.com at install time. The tarball ships only package.json (611 bytes); the declared main entry index.js is absent, so the package has no legitimate functionality — the lifecycle beacons are its sole purpose. Installing the package causes automatic host reconnaissance data to be sent to an author-controlled remote endpoint without consent.
What should I do about MAL-2026-16216?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.