MAL-2026-499 Malicious code in system-integration (PyPI)
Malicious package
Published
MAL-2026-499 is a malicious package: system-integration (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-2026-499/ (Markdown: https://insights.sbomify.com/MAL-2026-499/index.md)
- Package
- system-integration
- Registry
- PyPI
What is MAL-2026-499?
MAL-2026-499 is a malicious package in system-integration, published on 25 Jan 2026.
Official description
When importing the module, code downloads and executes a highly obfuscated remote script.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-01-system-integration
Reasons (based on the campaign):
Downloads and executes a remote malicious script.
obfuscation
What should I do about MAL-2026-499?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.