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[3.12] gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917) (GH-143973)#143974

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Yhg1s merged 1 commit into
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Jan 19, 2026
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[3.12] gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917) (GH-143973)#143974
Yhg1s merged 1 commit into
python:3.12python/cpython:3.12from
gpshead:backport-22e4d55-3.12gpshead/cpython:backport-22e4d55-3.12Copy head branch name to clipboard

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@gpshead

@gpshead gpshead commented Jan 17, 2026

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gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917)

(cherry picked from commit f7fceed) (cherry picked from commit 22e4d55)

…Headers (pythonGH-143917) (pythonGH-143973)

pythongh-143916: Reject control characters in wsgiref.headers.Headers  (pythonGH-143917)

* Add 'test.support' fixture for C0 control characters
* pythongh-143916: Reject control characters in wsgiref.headers.Headers

(cherry picked from commit f7fceed)
(cherry picked from commit 22e4d55)

Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
Co-authored-by: Seth Michael Larson <seth@python.org>
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