MAL-2026-2860 Malicious code in mylib-utils (PyPI)
Malicious package
Published
MAL-2026-2860 is a malicious package: mylib-utils (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-2026-2860/ (Markdown: https://insights.sbomify.com/MAL-2026-2860/index.md)
- Package
- mylib-utils
- Registry
- PyPI
What is MAL-2026-2860?
MAL-2026-2860 is a malicious package in mylib-utils, published on 18 Apr 2026.
Official description
During import, a remote executable is automatically started. During analysis, the executable only showed a basic message. It's likely experimenting with malicious techniques to prepare for real malicious action.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-04-mylib-utils
Reasons (based on the campaign):
Downloads and executes a remote executable.
The package overrides the install command in setup.py to execute malicious code during installation.
What should I do about MAL-2026-2860?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.