CVE-2026-37008: High severity CrewAI vulnerability
CrewAI before fb2323b offers a Python blocklist approach that operates at the wrong level of abstraction, a different vulnerability than CVE-2026-2275. Import-time blocking of module names does not address the availability of Python's complete object graph. For example, calling ctypes.CDLL(None) loads the C library without relying in any import statements. In other words, a within-process sandbox cannot merely account for the import system and instead must account for the complete runtime of the Python interpreter.
Affected Software
Event History
Frequently Asked Questions
Which deployments are exposed?
CrewAI deployments using a version before commit fb2323b3deb3ec62b3965526857e77a2264e4cd0 are affected where untrusted Python is restricted through import-time module-name blocking.
What does an attacker need to exploit this issue?
An attacker needs a way to execute Python code within the affected in-process sandbox. They can then reach capabilities through Python’s runtime object graph without importing a blocked module, such as loading the C library with ctypes.CDLL(None).
How can I determine whether my deployment is affected?
Check the CrewAI source revision in use. Revisions before fb2323b3deb3ec62b3965526857e77a2264e4cd0 and relying on import-time blocklisting for sandbox enforcement should be treated as affected.