CVE-2026-37008: CrewAI Python blocklist bypass via ctypes loading the C library

Summary

CrewAI versions before fb2323b rely on a Python blocklist that blocks modules at import time. This approach works at the wrong level of abstraction and does not stop access to Python's full object graph, so a different flaw from CVE-2026-2275 remains. The source gives ctypes.CDLL(None) as an example: it loads the C library without any import statement.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

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