CVE-2024-3219
Description
The “socket” module provides a pure-Python fallback to the socket.socketpair() function for platforms that don’t support AF_UNIX, such as Windows. This pure-Python implementation uses AF_INET or AF_INET6 to create a local connected pair of sockets. The connection between the two sockets was not verified before passing the two sockets back to the user, which leaves the server socket vulnerable to a connection race from a malicious local peer.
Platforms that support AF_UNIX such as Linux and macOS are not affected by this vulnerability. Versions prior to CPython 3.5 are not affected due to the vulnerable API not being included.
Patches
1406fa244666ec220e31adeaaa5df322e91a4031302f5fc24e5f90abaa786fe319f774f9e72621a8a40ba43f5d9d12c747c21a36112a00c5655aa6ad12f071f01b7b7e0b65c8bf536778df1043dbdcb252317956b7Vulnerability mechanics
Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
19- www.openwall.com/lists/oss-security/2024/07/29/3nvd
- github.com/python/cpython/commit/06fa244666ec6335a3b9bf2367e31b42b9a89b20nvd
- github.com/python/cpython/commit/0b65c8bf5367625673eafb92f85046a1b31259f2nvd
- github.com/python/cpython/commit/220e31adeaaa8436c9ff234cba1398bc49e2bb6cnvd
- github.com/python/cpython/commit/2621a8a40ba4b2c68ca564671b7daa5da80a4508nvd
- github.com/python/cpython/commit/31302f5fc24eecd693f0c8aaba7c2840b09b594dnvd
- github.com/python/cpython/commit/3f5d9d12c74787fbf3f5891835c85cc15526c86dnvd
- github.com/python/cpython/commit/5df322e91a40909e6904bbdbc0c3a6b6a9eead39nvd
- github.com/python/cpython/commit/5f90abaa786f994db3907fc31e2ee00ea2cf0929nvd
- github.com/python/cpython/commit/78df1043dbdce5c989600616f9f87b4ee72944e5nvd
- github.com/python/cpython/commit/b252317956b7fc035bb3774ef6a177e227f9fc54nvd
- github.com/python/cpython/commit/c21a36112a0028d7ac3cf8f480e0dc88dba5922cnvd
- github.com/python/cpython/commit/c5655aa6ad120d2ed7f255bebd6e8b71a9c07ddenvd
- github.com/python/cpython/commit/e319f774f9e766a2b92949444a2d46081df3363anvd
- github.com/python/cpython/commit/f071f01b7b7e19d7d6b3a4b0ec62f820ecb14660nvd
- github.com/python/cpython/issues/122133nvd
- github.com/python/cpython/pull/122134nvd
- mail.python.org/archives/list/security-announce@python.org/thread/WYKDQWIERRE2ICIYMSVRZJO33GSCWU2B/nvd
- security.netapp.com/advisory/ntap-20250502-0004/nvd
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