CVE-2023-27043
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.
Published:Apr 18, 2023
Last Modified:May 12, 2026
EPS:Apr 18, 2023
EPSS Score:0.00161
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Fedoraproject
Product
Fedora
Fedoraproject
Fedora
Vendor
Netapp
Product
Active Iq Unified Manager
Netapp
Active Iq Unified Manager
Vendor
Netapp
Product
Ontap Select Deploy Administration Utility
Netapp
Ontap Select Deploy Administration Utility
Vendor
Python
Product
Python
Python
Python
Vendor
Redhat
Product
Enterprise Linux
Redhat
Enterprise Linux
Vendor
Redhat
Product
Openshift Data Foundation
Redhat
Openshift Data Foundation
Vendor
Redhat
Product
Rhel Eus
Redhat
Rhel Eus
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
