CVE-2023-36632

DISPUTED The legacy email.utils.parseaddr function in Python through
3.11.4 allows attackers to trigger “RecursionError: maximum recursion depth
exceeded while calling a Python object” via a crafted argument. This
argument is plausibly an untrusted value from an application’s input data
that was supposed to contain a name and an e-mail address. NOTE:
email.utils.parseaddr is categorized as a Legacy API in the documentation
of the Python email package. Applications should instead use the
email.parser.BytesParser or email.parser.Parser class. NOTE: the vendor’s
perspective is that this is neither a vulnerability nor a bug. The email
package is intended to have size limits and to throw an exception when
limits are exceeded; they were exceeded by the example demonstration code.

Bugs

• <https://github.com/python/cpython/issues/103800&gt;

Notes