MAL-2026-16334 Malicious code in keroeltopgg (npm)
Malicious package
Published
MAL-2026-16334 is a malicious package: keroeltopgg (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-2026-16334/ (Markdown: https://insights.sbomify.com/MAL-2026-16334/index.md)
- Package
- keroeltopgg
- Registry
- npm
What is MAL-2026-16334?
MAL-2026-16334 is a malicious package in keroeltopgg, published on 21 Sep 2026.
Official description
[email protected] is a stub package whose index.js, executed on require/import, reads os.hostname() and issues an HTTPS GET to the hardcoded collector https://eo8f3m3ho26a0nm.m.pipedream.net/ with the package name and hostname as query parameters. The manifest has no real functionality: empty description, no README, version 99.99.99 (the canonical dependency-confusion probe version), duplicate 'Dependencies'/'dependencies' keys, and lifecycle scripts that only echo marker strings. The sole runtime behavior is the outbound beacon to an author-controlled Pipedream endpoint, which reports successful internal-namespace resolution and leaks the installer's hostname to the operator.
What should I do about MAL-2026-16334?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.