MAL-2026-2013 Malicious code in nump (PyPI)
Malicious package
Published
MAL-2026-2013 is a malicious package: nump (PyPI). 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-2026-2013/ (Markdown: https://insights.sbomify.com/MAL-2026-2013/index.md)
- Package
- nump
- Registry
- PyPI
What is MAL-2026-2013?
MAL-2026-2013 is a malicious package in nump, published on 21 Mar 2026.
Official description
Package is a typosquatting or dependency confusion attempt with a low-harm local-only action, like leaving a flag file.
Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.
Campaign: GENERIC-local-typosquatting
Reasons (based on the campaign):
dependency-confusion
The package overrides the install command in setup.py to execute malicious code during installation.
typosquatting
What should I do about MAL-2026-2013?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.