CVE-2026-61437 is an unsafe dynamic module loading vulnerability in PraisonAI's PyPI package praisonaiagents affecting versions before 1.6.78. The flaw is in AgentFlow.resolve_pydantic_class in workflows.py. When a workflow step specifies output_pydantic as a string reference, the framework resolves that reference by locating and importing a sibling Python module from the workflow file's directory using importlib exec_module. This import occurs without sandboxing and bypasses the intended control implied by the PRAISONAI_ALLOW*_TOOLS environment variables. If an attacker can supply or modify a workflow file together with the adjacent module that is implicitly imported during resolution, arbitrary Python code can be executed when the workflow is processed through WorkflowManager or after load_yaml.
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