Langroid is a framework for building large-language-model-powered applications. Versions prior to 0.65.2 are vulnerable to a critical Sandbox Escape leading to Remote Code Execution (RCE) in its "TableChatAgent" and "VectorStore" capabilities. When these agents evaluate LLM-generated tool messages with "full_eval=True", they attempt to sandbox the execution by explicitly setting "locals" to an empty dictionary "{}" inside Python's "eval()" function. However, this relies on an incomplete understanding of Python's execution model. Because "__builtins__" is not explicitly scrubbed from the "globals" dictionary mapping, Python implicitly injects all built-ins during execution, granting full access to functions like "__import__('os').system()". Since "TableChatAgent.pandas_eval()" executes external LLM outputs natively, this bypass permits any attacker providing prompt payload to achieve unauthenticated RCE on the host system. Version 0.65.2 patches the issue.