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Restrict builtins within lambdas for ImageMath.eval #6009

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merged 1 commit into from Feb 2, 2022

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@radarhere radarhere commented Feb 2, 2022

#5923 (comment) has pointed out that #5923 does not protect against lambdas wrapping unwanted code.

ImageMath.eval("(lambda: exit())()")

I can also imagine a lambda wrapping a lambda.

ImageMath.eval("(lambda: (lambda: exit())())()")

This PR protects against both.

@radarhere radarhere merged commit f84ab3b into python-pillow:main Feb 2, 2022
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@radarhere radarhere deleted the eval branch Feb 2, 2022
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