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[3.12] gh-118314: Fix padding edge case in binascii.a2b_base64 strict mode (GH-118320)#118691

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Merged

encukou merged 1 commit intopython:3.12frommiss-islington:backport-fe47d9b-3.12

May 7, 2024

Merged

[3.12] gh-118314: Fix padding edge case in binascii.a2b_base64 strict mode (GH-118320)#118691

encukou merged 1 commit intopython:3.12frommiss-islington:backport-fe47d9b-3.12

May 7, 2024

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miss-islington commentedMay 7, 2024•
edited by bedevere-appbot
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Fix an edge case inbinascii.a2b_base64 strict mode, where
excessive padding was not detected when no padding is necessary.

(cherry picked from commitfe47d9b)

Co-authored-by: Youfu Zhang1315097+zhangyoufu@users.noreply.github.com
Co-authored-by: Terry Jan Reedytjreedy@udel.edu
Co-authored-by: Pieter Eendebakpieter.eendebak@gmail.com

Issue:binascii.a2b_base64 strict mode accepts invalid base64 input #118314

pythongh-118314: Fix padding edge case in binascii.a2b_base64 strict …

8ee2b08

…mode (pythonGH-118320)Fix an edge case in `binascii.a2b_base64` strict mode, whereexcessive padding was not detected when no padding is necessary.(cherry picked from commitfe47d9b)Co-authored-by: Youfu Zhang <1315097+zhangyoufu@users.noreply.github.com>Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>