MAL-2026-17632 Malicious code in internallib_v23 (npm)
Malicious package
Published
MAL-2026-17632 is a malicious package: internallib_v23 (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-2026-17632/ (Markdown: https://insights.sbomify.com/MAL-2026-17632/index.md)
- Package
- internallib_v23
- Registry
- npm
What is MAL-2026-17632?
MAL-2026-17632 is a malicious package in internallib_v23, published on 6 Oct 2026.
Official description
index.js line 5 exports a function that invokes /bin/bash to curl https://reverse-shell.sh/10.0.19.80:4443 and pipe the response to a shell, delivering an interactive reverse shell to the hardcoded endpoint 10.0.19.80:4443 on the host where the exported function is called. The destination is a hardcoded private-range IP, there is no authentication, no documentation of the behavior, and the fetched content is executed directly. The package's only exported functionality is this backdoor dropper.
What should I do about MAL-2026-17632?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.