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gabe-sherman opened this issue May 17, 2025 · 2 comments
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AttributeError in email._header_value_parser.get_address #134155

gabe-sherman opened this issue May 17, 2025 · 2 comments
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stdlib Python modules in the Lib dir topic-email type-bug An unexpected behavior, bug, or error

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@gabe-sherman
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gabe-sherman commented May 17, 2025 •
edited by bedevere-app bot
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Bug report

Bug description:

During fuzzing of Python standard libraries, the following code snippet causes an AttributeError with the following message: AttributeError: 'InvalidHeaderDefect' object has no attribute 'all_defects'. This occurs in the all_defects function at line 140 in email/_header_value_parser.py.

import email._header_value_parser
email._header_value_parser.get_address("!an??:=m==fr2@[C")

Exception Trace

Traceback (most recent call last):
  File "rep.py", line 3, in <module>
    email._header_value_parser.get_address("!an??:=m==fr2@[C")
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 1988, in get_address
    token, value = get_group(value)
                   ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 1954, in get_group
    token, value = get_group_list(value)
                   ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 1926, in get_group_list
    token, value = get_mailbox_list(value)
                   ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 1860, in get_mailbox_list
    token, value = get_mailbox(value)
                   ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 1822, in get_mailbox
    for x in token.all_defects):
             ^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 140, in all_defects
    return sum((x.all_defects for x in self), self.defects)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 140, in <genexpr>
    return sum((x.all_defects for x in self), self.defects)
                ^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 140, in all_defects
    return sum((x.all_defects for x in self), self.defects)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 140, in <genexpr>
    return sum((x.all_defects for x in self), self.defects)
                ^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 140, in all_defects
    return sum((x.all_defects for x in self), self.defects)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/email/_header_value_parser.py", line 140, in <genexpr>
    return sum((x.all_defects for x in self), self.defects)
                ^^^^^^^^^^^^^
AttributeError: 'InvalidHeaderDefect' object has no attribute 'all_defects'

CPython versions tested on:

3.12, 3.11, 3.10, 3.9

Operating systems tested on:

Linux

Linked PRs
@gabe-sherman gabe-sherman added the type-bug An unexpected behavior, bug, or error label May 17, 2025
@picnixz picnixz added stdlib Python modules in the Lib dir topic-email labels May 17, 2025
@picnixz picnixz mentioned this issue May 18, 2025
Open
@picnixz picnixz changed the title AttributeError in email._header_value_parser.get_address AttributeError in email._header_value_parser.get_address May 18, 2025
@bitdancer
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This will be fixed by #134194.

@bedevere-app bedevere-app bot mentioned this issue May 26, 2025
Merged
@bitdancer bitdancer mentioned this issue May 26, 2025
Closed
bitdancer pushed a commit that referenced this issue Jun 5, 2025
@sergey-miryanov @picnixz @hugovk
gh-134155: fix AttributeError in email._header_value_parser.get_addre…
d9cad07 
…ss (#134194)

Append the defect to defects instead of to the parse tree.

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
miss-islington pushed a commit to miss-islington/cpython that referenced this issue Jun 5, 2025
@sergey-miryanov @picnixz
@hugovk @miss-islington
pythongh-134155: fix AttributeError in email._header_value_parser.get…
e429b2a 
…_address (pythonGH-134194)

Append the defect to defects instead of to the parse tree.
(cherry picked from commit d9cad07)

Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
miss-islington pushed a commit to miss-islington/cpython that referenced this issue Jun 5, 2025
@sergey-miryanov @picnixz
@hugovk @miss-islington
pythongh-134155: fix AttributeError in email._header_value_parser.get…
e0e9c79 
…_address (pythonGH-134194)

Append the defect to defects instead of to the parse tree.
(cherry picked from commit d9cad07)

Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
This was referenced Jun 5, 2025
Merged
Merged
bitdancer pushed a commit that referenced this issue Jun 6, 2025
@miss-islington @sergey-miryanov
@picnixz @hugovk
[3.13] gh-134155: fix AttributeError in email._header_value_parser.ge…
58b9581 
…t_address (GH-134194) (#135192)

gh-134155: fix AttributeError in email._header_value_parser.get_address (GH-134194)

Append the defect to defects instead of to the parse tree.
(cherry picked from commit d9cad07)

Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
bitdancer pushed a commit that referenced this issue Jun 6, 2025
@miss-islington @sergey-miryanov
@picnixz @hugovk
[3.14] gh-134155: fix AttributeError in email._header_value_parser.ge…
3faf00e 
…t_address (GH-134194) (#135191)

gh-134155: fix AttributeError in email._header_value_parser.get_address (GH-134194)

Append the defect to defects instead of to the parse tree.
(cherry picked from commit d9cad07)

Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
@bitdancer
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Thanks for fixing this, sergey-miryanov.

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