MAL-2025-191752 Malicious code in helmet-fastapi (PyPI)
Malicious package
Published
MAL-2025-191752 is a malicious package: helmet-fastapi (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-2025-191752/ (Markdown: https://insights.sbomify.com/MAL-2025-191752/index.md)
- Package
- helmet-fastapi
- Registry
- PyPI
What is MAL-2025-191752?
MAL-2025-191752 is a malicious package in helmet-fastapi, published on 30 Apr 2025.
Official description
Package contains hidden code adding a backdoor - a WebSocket path handler which will execute commands sent by an attacker knowing the path. In addition, it adds a log handler to remove related access logs.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-04-helmet-fastapi
Reasons (based on the campaign):
backdoor
obfuscation
What should I do about MAL-2025-191752?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.