CVE-2024-6923: There is a MEDIUM severity vulnerability affecting CPython
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 29 Oct 2026, 22:52 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 5.5 |
|---|
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 1 Aug 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
PyPIcpythonpkg:pypi/cpythonOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
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.
References
- nvd.nist.gov/vuln/detail/CVE-2024-6923 (opens in a new tab)
- github.com/python/cpython/issues/121650 (opens in a new tab)
- github.com/python/cpython/pull/122233 (opens in a new tab)
- github.com/python/cpython/commit/06f28dc236708f72871c64d4bc4b4ea144c50147 (opens in a new tab)
- github.com/python/cpython/commit/097633981879b3c9de9a1dd120d3aa585ecc2384 (opens in a new tab)
- github.com/python/cpython/commit/4766d1200fdf8b6728137aa2927a297e224d5fa7 (opens in a new tab)
- github.com/python/cpython/commit/4aaa4259b5a6e664b7316a4d60bdec7ee0f124d0 (opens in a new tab)
- github.com/python/cpython/commit/b158a76ce094897c870fb6b3de62887b7ccc33f1 (opens in a new tab)
- github.com/python/cpython/commit/f7be505d137a22528cb0fc004422c0081d5d90e6 (opens in a new tab)
- github.com/python/cpython/commit/f7c0f09e69e950cf3c5ada9dbde93898eb975533 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/12/msg00000.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/01/msg00005.html (opens in a new tab)
- mail.python.org/archives/list/security-announce@python.org/thread/QH3BUOE2DYQBWP7NAQ7UNHPPOELKISRW (opens in a new tab)
- security.netapp.com/advisory/ntap-20240926-0003 (opens in a new tab)
- openwall.com/lists/oss-security/2024/08/01/3 (opens in a new tab)
- openwall.com/lists/oss-security/2024/08/02/2 (opens in a new tab)