CVE-2024-6923

Severity CVSS v4.0:

Pending analysis

Type:

CWE-94 Code Injection

Publication date:

01/08/2024

Last modified:

15/04/2026

Description

There is a MEDIUM severity vulnerability affecting CPython. The email module didn’t properly quote newlines for email headers when serializing an email message allowing for header injection when an email is serialized.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x

5.50

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://github.com/python/cpython/commit/06f28dc236708f72871c64d4bc4b4ea144c50147
https://github.com/python/cpython/commit/097633981879b3c9de9a1dd120d3aa585ecc2384
https://github.com/python/cpython/commit/4766d1200fdf8b6728137aa2927a297e224d5fa7
https://github.com/python/cpython/commit/4aaa4259b5a6e664b7316a4d60bdec7ee0f124d0
https://github.com/python/cpython/commit/b158a76ce094897c870fb6b3de62887b7ccc33f1
https://github.com/python/cpython/commit/f7be505d137a22528cb0fc004422c0081d5d90e6
https://github.com/python/cpython/commit/f7c0f09e69e950cf3c5ada9dbde93898eb975533
https://github.com/python/cpython/issues/121650
https://github.com/python/cpython/pull/122233
https://mail.python.org/archives/list/security-announce@python.org/thread/QH3BUOE2DYQBWP7NAQ7UNHPPOELKISRW/
http://www.openwall.com/lists/oss-security/2024/08/01/3
http://www.openwall.com/lists/oss-security/2024/08/02/2
https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00005.html
https://security.netapp.com/advisory/ntap-20240926-0003/