Medium 5.0Published Sep 24, 2026

CVE-2026-96747Forced local Unix socket connection via dot-sock KMS endpoint in client-side field encryption

Updated under an hour ago (2026-10-19 06:25 UTC)

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It affects MongoDB Python Driver. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for MongoDB Python Driver

Exploited in the last 30 days

The client-side field level encryption support in the MongoDB Python Driver can treat a key management endpoint value ending in ".sock" as a local Unix domain socket path rather than a remote host. A user with write access to the encryption key metadata stored in the database can cause an application using the driver to open connections to local sockets on the application host. Data sent over these connections is limited to the start of a TLS handshake, so no chosen content is transmitted.

CVSS: 5.0 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mongodb
NVD analysis: Awaiting Analysis
Record last updated: Sep 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MongoDB Python Driver mongodb:python_driver (from the name)	from 3.9.0 before 4.18.2	CNA record

References

https://github.com/mongodb/mongo-python-driver/security/advisories/GHSA-qx36-8mw2-4r3x
https://github.com/mongodb/mongo-python-driver/releases/tag/4.18.2
https://github.com/mongodb/mongo-python-driver/blob/4.18.2/doc/changelog.rst

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.