Skip to content

[3.8] bpo-43882 - Mention urllib.parse changes in Whats new section. #26277

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
ambv merged 1 commit into from
Jun 28, 2021
Merged

[3.8] bpo-43882 - Mention urllib.parse changes in Whats new section. #26277

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 12 additions & 0 deletions Doc/whatsnew/3.8.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2294,4 +2294,16 @@ for and build on the oldest version in the range.
with fixes by FX Coudert and Eli Rykoff, and backported to 3.8 by Maxime Bélanger
and Ned Deily)

Notable changes in Python 3.8.10
================================

urllib.parse
------------

The presence of newline or tab characters in parts of a URL allows for some
forms of attacks. Following the WHATWG specification that updates :rfc:`3986`,
ASCII newline ``\n``, ``\r`` and tab ``\t`` characters are stripped from the
URL by the parser in :mod:`urllib.parse` preventing such attacks. The removal
characters are controlled by a new module level variable
``urllib.parse._UNSAFE_URL_BYTES_TO_REMOVE``. (See :issue:`43882`)