GHSA-f54q-57x4-jg88: Picklescan has a missing detection when calling built-in python lib2to3.pgen2.grammar.Grammar.loads

August 26, 2025

Using lib2to3.pgen2.grammar.Grammar.loads, which is a built-in python library function to execute remote pickle file.

References

github.com/advisories/GHSA-f54q-57x4-jg88
github.com/mmaitre314/picklescan
github.com/mmaitre314/picklescan/commit/aecd11be98702caa9ba9b12189d91ad596a36114
github.com/mmaitre314/picklescan/security/advisories/GHSA-f54q-57x4-jg88

Code Behaviors & Features

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