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Title: gh-145264: Do not ignore excess Base64 data after the first padded quad by serhiy-storchaka · Pull Request #145267 · python/cpython · GitHub

Open Graph Title: gh-145264: Do not ignore excess Base64 data after the first padded quad by serhiy-storchaka · Pull Request #145267 · python/cpython

X Title: gh-145264: Do not ignore excess Base64 data after the first padded quad by serhiy-storchaka · Pull Request #145267 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: Base64 decoder (see binascii.a2b_base64(), base64.b64decode(), etc) no longer ignores excess data after the first padded quad in non-strict (default) mode. Instead, in conformance with RFC 4648, i...

X Description: Base64 decoder (see binascii.a2b_base64(), base64.b64decode(), etc) no longer ignores excess data after the first padded quad in non-strict (default) mode. Instead, in conformance with RFC 4648, i...

Opengraph URL: https://github.com/python/cpython/pull/145267

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pythongh-146056https://github.com/python/cpython/issues/146056
python#146167https://github.com/python/cpython/pull/146167
python#146276https://github.com/python/cpython/pull/146276
pythongh-145264https://github.com/python/cpython/issues/145264
pythonGH-145267https://github.com/python/cpython/pull/145267
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pythongh-146192https://github.com/python/cpython/issues/146192
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ambvhttps://github.com/ambv
Mar 23, 2026 https://github.com/python/cpython/pull/145267#ref-commit-e31c551
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[3.14]https://github.com/python/cpython/commit/e31c55121620189a0d1a07b689762d8ca9c1b7fa
gh-145264https://github.com/python/cpython/issues/145264
: Do not ignore excess Base64 data after the first pa…https://github.com/python/cpython/commit/e31c55121620189a0d1a07b689762d8ca9c1b7fa
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GH-145267https://github.com/python/cpython/pull/145267
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Mar 23, 2026 https://github.com/python/cpython/pull/145267#ref-commit-bd4ab52
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: Do not ignore excess Base64 data after the fi…https://github.com/miss-islington/cpython/commit/bd4ab523ba664863d40470cc718c566158adfa31
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pythonGH-145267https://github.com/python/cpython/pull/145267
pythonGH-146326https://github.com/python/cpython/pull/146326
4561f64https://github.com/miss-islington/cpython/commit/4561f6418a691b3e89aef0901f53fe0dfb7f7c0e
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Mar 23, 2026 https://github.com/python/cpython/pull/145267#ref-commit-1f9958f
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https://github.com/serhiy-storchaka
[3.13]https://github.com/python/cpython/commit/1f9958f909c1b41a4ffc0b613ef8ec8fa5e7c474
gh-145264https://github.com/python/cpython/issues/145264
: Do not ignore excess Base64 data after the first pa…https://github.com/python/cpython/commit/1f9958f909c1b41a4ffc0b613ef8ec8fa5e7c474
1f9958fhttps://github.com/python/cpython/commit/1f9958f909c1b41a4ffc0b613ef8ec8fa5e7c474
GH-145267https://github.com/python/cpython/pull/145267
GH-146326https://github.com/python/cpython/pull/146326
GH-146348https://github.com/python/cpython/pull/146348
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https://github.com/StanFromIreland
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needs backport to 3.13 https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22needs%20backport%20to%203.13%22
Mar 25, 2026https://github.com/python/cpython/pull/145267#event-23910598658
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Apr 4, 2026 https://github.com/python/cpython/pull/145267#ref-pullrequest-3716338400
gh-130273: Fix traceback color output with unicode characters #142529 https://github.com/python/cpython/pull/142529
https://github.com/UTsweetyfish
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Apr 13, 2026 https://github.com/python/cpython/pull/145267#ref-issue-4250900195
python3.12: CVE-2026-1502 deepin-community/sig-deepin-security#321 https://github.com/deepin-community/sig-deepin-security/issues/321
ljfphttps://github.com/ljfp
Apr 25, 2026 https://github.com/python/cpython/pull/145267#ref-commit-3eba3bd
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pythongh-145264https://github.com/python/cpython/issues/145264
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