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Title: Upgrade bundled Expat to 2.7.5 (e.g. for the fixes to `CVE-2026-3277{6,7,8}`) · Issue #146083 · python/cpython · GitHub

Open Graph Title: Upgrade bundled Expat to 2.7.5 (e.g. for the fixes to `CVE-2026-3277{6,7,8}`) · Issue #146083 · python/cpython

X Title: Upgrade bundled Expat to 2.7.5 (e.g. for the fixes to `CVE-2026-3277{6,7,8}`) · Issue #146083 · python/cpython

Description: See https://blog.hartwork.org/posts/expat-2-7-5-released/ for more information on the release. Linked PRs gh-146085 gh-146603 gh-146604 gh-146605 gh-146607 gh-146608

Open Graph Description: See https://blog.hartwork.org/posts/expat-2-7-5-released/ for more information on the release. Linked PRs gh-146085 gh-146603 gh-146604 gh-146605 gh-146607 gh-146608

X Description: See https://blog.hartwork.org/posts/expat-2-7-5-released/ for more information on the release. Linked PRs gh-146085 gh-146603 gh-146604 gh-146605 gh-146607 gh-146608

Opengraph URL: https://github.com/python/cpython/issues/146083

X: @github

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Upgrade bundled Expat to 2.7.5 (e.g. for the fixes to CVE-2026-3277{6,7,8})https://github.com/python/cpython/issues/146083#top
https://github.com/StanFromIreland
3.12only security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.12%22
extension-modulesC modules in the Modules dirhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22extension-modules%22
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on Mar 17, 2026https://github.com/python/cpython/issues/146083#issue-4091161108
https://blog.hartwork.org/posts/expat-2-7-5-released/https://blog.hartwork.org/posts/expat-2-7-5-released/
gh-146083: Upgrade bundled Expat to 2.7.5 #146085https://github.com/python/cpython/pull/146085
[3.14] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085) #146603https://github.com/python/cpython/pull/146603
[3.13] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085) #146604https://github.com/python/cpython/pull/146604
[3.12] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085) #146605https://github.com/python/cpython/pull/146605
[3.11] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085) #146607https://github.com/python/cpython/pull/146607
[3.10] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085) #146608https://github.com/python/cpython/pull/146608
StanFromIrelandhttps://github.com/StanFromIreland
3.12only security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.12%22
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