MAL-2026-10609 Malicious code in utils-style-engine (npm)
Malicious package
Published
MAL-2026-10609 is a malicious package: utils-style-engine (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-2026-10609/ (Markdown: https://insights.sbomify.com/MAL-2026-10609/index.md)
- Package
- utils-style-engine
- Registry
- npm
What is MAL-2026-10609?
MAL-2026-10609 is a malicious package in utils-style-engine, published on 14 Jul 2026.
Official description
The package declares a preinstall hook that runs index.js on npm install. index.js collects host identifiers (os.hostname(), os.userInfo(), uid/gid, shell, homedir, process.platform, cwd, and the output of
whoami/id via child_process) and POSTs the collected data as JSON to a hardcoded external endpoint at https://mj9yg25wm8m4vnkrrok8lwcogfm6awyl.oastify.com/detox56 (a Burp Suite Collaborator subdomain). The package ships no other functionality: package.json has an empty description, empty author, no repository, and the generic name utils-style-engine; the only shipped file besides the manifest is the beacon script. The shape is consistent with a dependency-confusion / reconnaissance probe.What should I do about MAL-2026-10609?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.