CVE-2024-4032: Libpython · Incorrect IPv4 and IPv6 private ranges
Affects libpythonSource GCVE Database
Not known to be exploited · CVSS 7.5 High · fixed in 3.12.4 : patch libpython soon.
Data as of 27 Oct 2026, 00:27 UTC
- Patch
- Available – fixed in 3.12.4, 3.11.10, 3.10.15 +2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 17 Jun 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Bitnamilibpythonpkg:bitnami/libpythonOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade to the fixed versions of CPython: 3.8.20, 3.9.20, 3.10.15, 3.11.10, or 3.12.4. These versions contain updated ipaddress module data aligned with the latest IANA registries, correcting the classification behavior. No other mitigation is indicated.
Description
The ipaddress module in libpython incorrectly classified certain IPv4 and IPv6 addresses as private or globally reachable, deviating from the latest IANA Special-Purpose Address Registries. This affected the is_private and is_global properties of several ipaddress classes. The issue is fixed in CPython versions 3.8.20, 3.9.20, 3.10.15, 3.11.10, and 3.12.4.
References
- openwall.com/lists/oss-security/2024/06/17/3 (opens in a new tab)
- github.com/python/cpython/commit/22adf29da8d99933ffed8647d3e0726edd16f7f8 (opens in a new tab)
- github.com/python/cpython/commit/40d75c2b7f5c67e254d0a025e0f2e2c7ada7f69f (opens in a new tab)
- github.com/python/cpython/commit/895f7e2ac23eff4743143beef0f0c5ac71ea27d3 (opens in a new tab)
- github.com/python/cpython/commit/ba431579efdcbaed7a96f2ac4ea0775879a332fb (opens in a new tab)
- github.com/python/cpython/commit/c62c9e518b784fe44432a3f4fc265fb95b651906 (opens in a new tab)
- github.com/python/cpython/commit/f86b17ac511e68192ba71f27e752321a3252cee3 (opens in a new tab)
- github.com/python/cpython/issues/113171 (opens in a new tab)
- github.com/python/cpython/pull/113179 (opens in a new tab)
- mail.python.org/archives/list/security-announce@python.org/thread/NRUHDUS2IV2USIZM2CVMSFL6SCKU3RZA/ (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2024-4032 (opens in a new tab)
- security.netapp.com/advisory/ntap-20240726-0004/ (opens in a new tab)
- iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml (opens in a new tab)
- iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/12/msg00000.html (opens in a new tab)