CSV file import vulnerabilities? [python django pandas]

Hello, I am developing a web app, a really simple one, the user uploads a csv file, I process it in python using the django framework and i simply respond with results on another page. The only inputs are a text input and a file input. I use pandas to read through the csv file. I have heard a few things about string sanitization but I have no idea what could be done regarding the file. I want to ask you first of all what the worst case scenario would be should someone upload a bad file, if you have any suggestions or resources regarding file sanitization? if that exists? and if you see any other vulnarabilities despite only the 2 inputs? And in general any tips would be greatly appreciated. Thank you for reading and thanks in advance

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