MAL-2026-613 Malicious code in fastpi (PyPI)
Malicious package
Published
MAL-2026-613 is a malicious package: fastpi (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-2026-613/ (Markdown: https://insights.sbomify.com/MAL-2026-613/index.md)
- Package
- fastpi
- Registry
- PyPI
What is MAL-2026-613?
MAL-2026-613 is a malicious package in fastpi, published on 30 Jan 2026.
Official description
Malicious copy of the legitimate FastAPI. The modification loads code encrypted in one of the attached files. The final, highly obfuscated code is most likely similar to the code from 2026-01-pypi-package-explore, with the exact behavior unknown.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-01-fastpi
Reasons (based on the campaign):
clones-real-package
obfuscation
typosquatting
What should I do about MAL-2026-613?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.