MAL-2025-191880 Malicious code in stubsoutagn (PyPI)
Malicious package
Published
MAL-2025-191880 is a malicious package: stubsoutagn (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-2025-191880/ (Markdown: https://insights.sbomify.com/MAL-2025-191880/index.md)
- Package
- stubsoutagn
- Registry
- PyPI
What is MAL-2025-191880?
MAL-2025-191880 is a malicious package in stubsoutagn, published on 7 Jun 2025.
Official description
While described as telemetry, importing the package attempts to send out some basic info as well as quite sensitive environmental variables.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-06-stubsout
Reasons (based on the campaign):
The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
exfiltration-env-variables
What should I do about MAL-2025-191880?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.