MAL-2026-1407 Malicious code in thief-utils (PyPI)
Malicious package
Published
MAL-2026-1407 is a malicious package: thief-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-2026-1407/ (Markdown: https://insights.sbomify.com/MAL-2026-1407/index.md)
- Package
- thief-utils
- Registry
- PyPI
What is MAL-2026-1407?
MAL-2026-1407 is a malicious package in thief-utils, published on 13 Mar 2026.
Official description
During installation, package attempts to exfiltrate cloud credentials and sensitive env variables
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-thief-utils
Reasons (based on the campaign):
exfiltration-cloud-tokens
exfiltration-generic
exfiltration-env-variables
What should I do about MAL-2026-1407?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.