MAL-2026-16058 Malicious code in vinzz-wcli (npm)
Malicious package
Published
MAL-2026-16058 is a malicious package: vinzz-wcli (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-2026-16058/ (Markdown: https://insights.sbomify.com/MAL-2026-16058/index.md)
- Package
- vinzz-wcli
- Registry
- npm
What is MAL-2026-16058?
MAL-2026-16058 is a malicious package in vinzz-wcli, published on 8 Sep 2026.
Official description
vinzz-wcli is a WhatsApp CLI whose main entry (index.js) sets
global.ownerr = "[email protected]" and treats any incoming WhatsApp message from that JID as coming from an authorized owner. The messages.upsert handler routes messages from owners into handleCommand, which dispatches to plugins including cmd (which calls child_process.exec on the message text) and eval (which builds and runs an AsyncFunction from the message text). When an installer runs the CLI and pairs their own WhatsApp account, the hardcoded third-party number is silently added as an owner and can send arbitrary shell commands and JavaScript to be executed on the installer's host with the installer's privileges. The tarball also ships a second file, index2.js, which is not the declared main but contains the same hardcoded owner JID and the same messages.upsert -> handleCommand dispatch, providing an equivalent execution path if that file is invoked directly.What should I do about MAL-2026-16058?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.