MAL-2026-16311 Malicious code in test12vv36 (npm)
Malicious package
Published
MAL-2026-16311 is a malicious package: test12vv36 (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-2026-16311/ (Markdown: https://insights.sbomify.com/MAL-2026-16311/index.md)
- Package
- test12vv36
- Registry
- npm
What is MAL-2026-16311?
MAL-2026-16311 is a malicious package in test12vv36, published on 21 Sep 2026.
Official description
[email protected] declares both preinstall and postinstall lifecycle hooks that execute index.js on npm install. index.js issues an HTTP GET to a hardcoded bare-IP endpoint at http://128.199.122.145/?test12vv36, sending the package name in the query string and disclosing the installer's source IP to the operator of that host. The version number (99.99.99) and package.json shape (dependency on a typosquat name 'requests@^0.3.0' plus a duplicate misspelled 'Dependencies' key) are consistent with a dependency-confusion or proof-of-concept publish rather than a functional library. Installing the package causes unauthenticated, unencrypted outbound network activity to attacker-controlled infrastructure at install time, confirming successful installation on the host.
What should I do about MAL-2026-16311?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.