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osvGoogleOSV:CVE-2023-27043
HistoryApr 19, 2023 - 12:15 a.m.

CVE-2023-27043

2023-04-1900:15:07
Google
osv.dev
5
python
email module
vulnerability
parsing
e-mail addresses
rfc2822
header
addr-spec
protection mechanism
application access
domain
signup
software

5.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.4%

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