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OpenAdvisories
Malicious MAL-2025-191927

wayspiritmcp-weather

PyPI package · versions 0.8.0, 0.7.15, 0.7.14, 0.7.13, 0.7.12, 0.7.11, 0.7.10, 0.7.9, 0.7.8, 0.7.7, 0.7.6, 0.7.5, 0.7.4, 0.7.3, 0.7.2, 0.7.1, 0.7.0, 0.6.3, 0.6.2, 0.6.1, 0.6.0, 0.5.1, 0.5.0, 0.4.6, 0.4.5, 0.4.4, 0.4.3, 0.4.…

Reported Nov 5, 2025 · Updated Apr 22, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (c3dbe830c7b2364daef2e4634c16062b86b0b26b88f95533e9413aa91bc646fd)
Package seems to provide an MCP server, but in fact contains attempts to make an LLM agent break safeguards. As the request is about leaves just a flag, it seems to be research.

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Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: 2025-11-wayspirit

Reasons (based on the campaign):

- llm-threat