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Title: gh-149698: Update bundled expat to 2.8.1 by StanFromIreland · Pull Request #149699 · python/cpython · GitHub

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Open Graph Description: Verification passed: https://github.com/python/cpython/actions/runs/25694822449/job/75440245816?pr=149699 Issue: Upgrade bundled Expat to 2.8.1 (e.g. for the fix to CVE-2026-45186) #149698

X Description: Verification passed: https://github.com/python/cpython/actions/runs/25694822449/job/75440245816?pr=149699 Issue: Upgrade bundled Expat to 2.8.1 (e.g. for the fix to CVE-2026-45186) #149698

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gh-149698https://github.com/python/cpython/issues/149698
: Update bundled expat to 2.8.1 (https://github.com/python/cpython/commit/6fff3e4bc6027baec65722ce72a32b2da3fd5793
GH-149699https://github.com/python/cpython/pull/149699
) (https://github.com/python/cpython/commit/6fff3e4bc6027baec65722ce72a32b2da3fd5793
#149827https://github.com/python/cpython/pull/149827
)https://github.com/python/cpython/commit/6fff3e4bc6027baec65722ce72a32b2da3fd5793
6fff3e4https://github.com/python/cpython/commit/6fff3e4bc6027baec65722ce72a32b2da3fd5793
f1a47e7https://github.com/python/cpython/commit/f1a47e79fb7081d3cde6364530bfa98240ebbe4c
https://github.com/Yhg1s
Yhg1shttps://github.com/Yhg1s
needs backport to 3.10 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.10%22
needs backport to 3.11 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.11%22
needs backport to 3.12 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.12%22
needs backport to 3.10 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.10%22
needs backport to 3.11 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.11%22
needs backport to 3.12 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.12%22
May 18, 2026https://github.com/python/cpython/pull/149699#event-25672921167
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May 18, 2026https://github.com/python/cpython/pull/149699#event-25672934882
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May 18, 2026https://github.com/python/cpython/pull/149699#issuecomment-4481023161
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May 18, 2026https://github.com/python/cpython/pull/149699#issuecomment-4481025397
GH-150020https://github.com/python/cpython/pull/150020
3.12 branchhttps://github.com/python/cpython/tree/3.12
Please reload this pagehttps://github.com/python/cpython/pull/149699
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needs backport to 3.12 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.12%22
May 18, 2026https://github.com/python/cpython/pull/149699#event-25672945370
https://github.com/zainnadeem786
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Jun 25, 2026 https://github.com/python/cpython/pull/149699#ref-issue-4745657413
Upgrade bundled Expat to 2.8.2 (e.g. for the fix to CVE-2026-56132 and 12 others) #152216 https://github.com/python/cpython/issues/152216
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needs backport to 3.10 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.10%22
needs backport to 3.11 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.11%22
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