[3.7] gh-102153: Start stripping C0 control and space chars in urlsplit
(GH-102508) (GH-104575) (GH-104592) (#104593)
#104896
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gh-102153: Start stripping C0 control and space chars in
urlsplit
(GH-102508)urllib.parse.urlsplit
has already been respecting the WHATWG spec a bit GH-25595.This adds more sanitizing to respect the "Remove any leading C0 control or space from input" rule in response to CVE-2023-24329.
I simplified the docs by eliding the state of the world explanatory paragraph in this security release only backport. (people will see that in the mainline /3/ docs)
(cherry picked from commit d7f8a5f) (cherry picked from commit 2f630e1) (cherry picked from commit 610cc0a) (cherry picked from commit f48a96a)