MAL-2026-3372 Malicious code in ninja-core-utils (PyPI)
Malicious package
Published
MAL-2026-3372 is a malicious package: ninja-core-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-2026-3372/ (Markdown: https://insights.sbomify.com/MAL-2026-3372/index.md)
- Package
- ninja-core-utils
- Registry
- PyPI
What is MAL-2026-3372?
MAL-2026-3372 is a malicious package in ninja-core-utils, published on 7 May 2026.
Official description
During installation, obfuscated code exfiltrates cryptocurrency wallet data to a hardcoded location
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-05-ninja-core-utils
Reasons (based on the campaign):
The package overrides the install command in setup.py to execute malicious code during installation.
obfuscation
crypto-related
exfiltration-crypto
backdoor
What should I do about MAL-2026-3372?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.