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[3.11] gh-145599, CVE 2026-3644: Reject control characters in http.cookies.Morsel.update() (GH-145600)#146026

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pablogsal merged 2 commits into
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Jun 28, 2026
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[3.11] gh-145599, CVE 2026-3644: Reject control characters in http.cookies.Morsel.update() (GH-145600)#146026
pablogsal merged 2 commits into
python:3.11from
miss-islington:backport-57e88c1-3.11

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@miss-islington

@miss-islington miss-islington commented Mar 16, 2026

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Reject control characters in http.cookies.Morsel.update() and http.cookies.BaseCookie.js_output.
(cherry picked from commit 57e88c1)

Co-authored-by: Stan Ulbrych 89152624+StanFromIreland@users.noreply.github.com
Co-authored-by: Victor Stinner vstinner@python.org
Co-authored-by: Victor Stinner victor.stinner@gmail.com

…okies.Morsel.update()` (pythonGH-145600)

Reject control characters in `http.cookies.Morsel.update()` and `http.cookies.BaseCookie.js_output`.
(cherry picked from commit 57e88c1)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <victor.stinner@gmail.com>

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LGTM.

Comment thread Misc/NEWS.d/next/Security/2026-03-06-17-03-38.gh-issue-145599.kchwZV.rst Outdated
…kchwZV.rst

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
@elboulangero

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Hello, I'm doing some backport work for Debian, and wondering if this one is going to be merged, or if there's some reason why it shouldn't. From the surface it looks like a fairly simple patch.

I don't want to rush anyone, just asking for advice. Thanks!

@StanFromIreland

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It'll be merged before the next release.

@pablogsal pablogsal merged commit dae4b1a into python:3.11 Jun 28, 2026
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@miss-islington miss-islington deleted the backport-57e88c1-3.11 branch June 28, 2026 22:16
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5 participants