MAL-2025-191698 Malicious code in callistopy (PyPI)
Malicious package
Published
MAL-2025-191698 is a malicious package: callistopy (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-2025-191698/ (Markdown: https://insights.sbomify.com/MAL-2025-191698/index.md)
- Package
- callistopy
- Registry
- PyPI
What is MAL-2025-191698?
MAL-2025-191698 is a malicious package in callistopy, published on 5 Jul 2025.
Official description
Package creates a telegram client which silently exfiltrate user's Telegram data, including sessions and configuration, to a hardcoded remote target
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-07-callistopy
Reasons (based on the campaign):
exfiltration-generic
action-hidden-in-lib-usage
What should I do about MAL-2025-191698?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.