PRIOn knowledge basePRION:CVE-2023-27043Authentication flaw
The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some applications, an attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be used for signup). This occurs in email/_parseaddr.py in recent versions of Python.
References
github.com/python/cpython/issues/102988
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python-security.readthedocs.io/vuln/email-parseaddr-realname.html
python.org
security.netapp.com/advisory/ntap-20230601-0003/
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