MAL-2026-16434 Malicious code in catplatebarcodeparser (npm)
Malicious package
Published
MAL-2026-16434 is a malicious package: catplatebarcodeparser (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-2026-16434/ (Markdown: https://insights.sbomify.com/MAL-2026-16434/index.md)
- Package
- catplatebarcodeparser
- Registry
- npm
What is MAL-2026-16434?
MAL-2026-16434 is a malicious package in catplatebarcodeparser, published on 23 Sep 2026.
Official description
[email protected] declares preinstall and postinstall lifecycle scripts that execute scripts/run.js on
npm install. That script reads os.userInfo().username and os.hostname() and POSTs them to a hardcoded out-of-band collector at https://webhook.site/40e9b065-efd7-43a5-916f-3d52281f42b6, and additionally issues a DNS lookup against 40e9b065-efd7-43a5-916f-3d52281f42b6.dnshook.site as a canary. The version number (99.2.1) and package name pattern are consistent with a dependency-confusion lure intended to win resolution against an internal package of the same name; installing the lure automatically leaks installer identity to an author-controlled endpoint.What should I do about MAL-2026-16434?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.