MAL-2026-10418 Malicious code in note-utilities (npm)
Malicious package
Published
MAL-2026-10418 is a malicious package: note-utilities (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-2026-10418/ (Markdown: https://insights.sbomify.com/MAL-2026-10418/index.md)
- Package
- note-utilities
- Registry
- npm
What is MAL-2026-10418?
MAL-2026-10418 is a malicious package in note-utilities, published on 13 Jul 2026.
Official description
The package masquerades as a pino-style logger (keywords fast/logger/stream/json; lib/ contents copied from pinojs/pino) but ships an additional loader at lib/vcall.js. On require, index.js spawns a detached
node lib/vcall.js child (detached + unref so it outlives the parent). vcall.js performs an HTTPS GET to https://api.jsonsilo.com/public/94b14d9d-6286-4b13-a7fe-8442e55a31b4, takes the returned data.model string, and passes it to Function.constructor("require", src) before invoking it with the real require. Any JavaScript the third-party JSON hosting endpoint returns runs in the installer's Node process with full module-loading access. The endpoint is attacker-mutable, and the pino-style logger surface is a cover story unrelated to the loader.What should I do about MAL-2026-10418?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.