MAL-2026-3148 Malicious code in amazon-boto (PyPI)
Malicious package
Published
MAL-2026-3148 is a malicious package: amazon-boto (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-2026-3148/ (Markdown: https://insights.sbomify.com/MAL-2026-3148/index.md)
- Package
- amazon-boto
- Registry
- PyPI
What is MAL-2026-3148?
MAL-2026-3148 is a malicious package in amazon-boto, published on 29 Apr 2026.
Official description
When using the package, the given AWS credentials are silently exfiltrated to a hardcoded location. This incarnation of the long-running campaign was first flagged by OpenSourceMalware https://opensourcemalware.com/pypi/amazon-boto
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-08-aws-enumerate
Reasons (based on the campaign):
exfiltration-generic
action-hidden-in-lib-usage
exfiltration-credentials
What should I do about MAL-2026-3148?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.