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DOC: Document Remote Code Execution risk for Dataframe.query and computation.eval #58697

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May 22, 2024
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DOC: Document Remote Code Execution risk for Dataframe.query and computation.eval #58697

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Document Remote Code Execution risk for Dataframe.query and computati…
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fix docstring lint
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2 changes: 2 additions & 0 deletions pandas/core/computation/eval.py
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Expand Up @@ -193,6 +193,8 @@ def eval(
corresponding bitwise operators. :class:`~pandas.Series` and
:class:`~pandas.DataFrame` objects are supported and behave as they would
with plain ol' Python evaluation.
This allows `eval` to run arbitrary code, which can make you vulnerable to code
injection if you pass user input to this function.
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This is an internal method, right? In such case, I don't think this is necessary.

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Ah - this is exposed at the top level. Agree with including it, but I don't think starting with This is accurate - it
reads to me like that refers to the previous sentence. Can just say

eval can run arbitrary code, ...


Parameters
----------
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4 changes: 4 additions & 0 deletions pandas/core/frame.py
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Expand Up @@ -4473,6 +4473,10 @@ def query(self, expr: str, *, inplace: bool = False, **kwargs) -> DataFrame | No
"""
Query the columns of a DataFrame with a boolean expression.

This function pass the `expr` parameter to :meth:`~pandas.DataFrame.eval`.
This allows `eval` to run arbitrary code, which can make you vulnerable to code
injection if you pass user input to this function.
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Suggested change
This function pass the `expr` parameter to :meth:`~pandas.DataFrame.eval`.
This allows `eval` to run arbitrary code, which can make you vulnerable to code
injection if you pass user input to this function.
This method can run arbitrary code, which can make you vulnerable to code
injection if you pass user input to this function.

I don't think we need to mention the implementation details; it's sufficient to warn that query can run arbitrary code.


Parameters
----------
expr : str
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