MAL-2026-469 Malicious code in cflashfiles (PyPI)
Malicious package
Published
MAL-2026-469 is a malicious package: cflashfiles (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-2026-469/ (Markdown: https://insights.sbomify.com/MAL-2026-469/index.md)
- Package
- cflashfiles
- Registry
- PyPI
What is MAL-2026-469?
MAL-2026-469 is a malicious package in cflashfiles, published on 22 Jan 2026.
Official description
Malicious clone of legitimate fsspec package. The code was modified to exfiltrate specific files on import.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-01-old-cflashfiles
Reasons (based on the campaign):
clones-real-package
files-exfiltration
What should I do about MAL-2026-469?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.