CVE-2023-27043

MEDIUM

Python <3.11.3 - Info Disclosure

Title source: llm
STIX 2.1

Description

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 (46)

Core 46
Core References
Vendor Advisory
http://python.org

Scores

CVSS v3 5.3
EPSS 0.0251
EPSS Percentile 82.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-1286 CWE-20
Status published
Products (5)
fedoraproject/fedora 38
fedoraproject/fedora 39
netapp/active_iq_unified_manager (2 CPE variants)
netapp/ontap_select_deploy_administration_utility
python/python < 2.7.18
Published Apr 19, 2023
Tracked Since Feb 18, 2026