MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. In versions up to and including 1.5.0, the "pickle_operations" function in "monai/data/utils.py" automatically handles dictionary key-value pairs ending with a specific suffix and deserializes them using "pickle.loads()" . This function also lacks any security measures. The deserialization may lead to code execution. As of time of publication, no known fixed versions are available.