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gh-143921: Reject control characters in IMAP commands #143922

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Merged
sethmlarson merged 2 commits into from
Jan 20, 2026
+17 −1
Merged

gh-143921: Reject control characters in IMAP commands #143922

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7485ee5
Add 'test.support' fixture for C0 control characters
sethmlarson Jan 16, 2026
997a64a
gh-143921: Disallow control characters in IMAP commands
sethmlarson Jan 7, 2026
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Add 'test.support' fixture for C0 control characters
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@sethmlarson
sethmlarson committed Jan 16, 2026
commit 7485ee5e2cf81d3e5ad0d9c3be73cecd2ab4eec7
7 changes: 7 additions & 0 deletions Lib/test/support/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3303,3 +3303,10 @@ def linked_to_musl():
return _linked_to_musl
_linked_to_musl = tuple(map(int, version.split('.')))
return _linked_to_musl


def control_characters_c0() -> list[str]:
"""Returns a list of C0 control characters as strings.
C0 control characters defined as the byte range 0x00-0x1F, and 0x7F.
"""
return [chr(c) for c in range(0x00, 0x20)] + ["\x7F"]