CVE-2024-32195.1MediumCWE-306

CVE-2024-3219: Pure-Python fallback of socket.socketpair() doesn’t authenticate peer connection

Python Software Foundation · CPython

Vendor fix available · Affected: Python Software Foundation CPython · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

16th percentile

050100

Higher than 16% of scored CVEs

5.1MediumCVSS 4.0

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Python Software Foundation · CPythonbefore 3.8.20; from 3.9.0 before 3.9.20; from 3.10.0 before 3.10.15; from 3.11.0 before 3.11.10; from 3.12.0 before 3.12.5; from 3.13.0a1 before 3.13.0rc1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Missing Authentication · Authentication
Vendor: Python Software Foundation
Published: July 2024
Band: Unlikely (under 1%), July 2024
Bounty reports: 1 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2024-3219

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

`Curl_socketpair()` fallback vulnerable to man-in-the-middle attackcurl · 2025Informative

CoverageNo articles yet

No CyberSIXT article names CVE-2024-3219 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

7 more references are in the CVE record.