diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py index 795cc453fff..cec31fd9ab1 100644 --- a/Lib/lib-tk/Tkinter.py +++ b/Lib/lib-tk/Tkinter.py @@ -1709,7 +1709,9 @@ class Tk(Misc, Wm): self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) if useTk: self._loadtk() - self.readprofile(baseName, className) + if not sys.flags.ignore_environment: + # Issue #16248: Honor the -E flag to avoid code injection. + self.readprofile(baseName, className) def loadtk(self): if not self._tkloaded: self.tk.loadtk() diff --git a/Misc/NEWS b/Misc/NEWS index ecf0aa32c35..0db76a962ab 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -160,6 +160,9 @@ Core and Builtins Library ------- +- Issue #16248: Disable code execution from the user's home directory by + tkinter when the -E flag is passed to Python. Patch by Zachary Ware. + - Issue #16628: Fix a memory leak in ctypes.resize(). - Issue #13614: Fix setup.py register failure with invalid rst in description.