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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Attack Vector
- network
- Complexity
- low
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- low
- Availability
- none
- Weaknesses
- CWE-20CWE-20CWE-1286
Metadata
- Primary Vendor
- FEDORAPROJECT
- Published
- 4/19/2023
- Last Modified
- 12/17/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
fedoraproject : fedorafedoraproject : fedoranetapp : active_iq_unified_managernetapp : active_iq_unified_managernetapp : ontap_select_deploy_administration_utilitypython : pythonpython : pythonpython : pythonpython : pythonpython : pythonpython : python
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