---
id: CVE-2026-96747
title: >-
  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
summary: >-
  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
  encrypt…
severity: medium
cvss: 5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: MongoDB
product: Python Driver
affected:
  - python_driver >= 3.9.0 < 4.18.2
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:04:40.340'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96747'
references:
  - url: >-
      https://github.com/mongodb/mongo-python-driver/blob/4.18.2/doc/changelog.rst
    label: cna@mongodb.com
  - url: 'https://github.com/mongodb/mongo-python-driver/releases/tag/4.18.2'
    label: cna@mongodb.com
  - url: >-
      https://github.com/mongodb/mongo-python-driver/security/advisories/GHSA-qx36-8mw2-4r3x
    label: cna@mongodb.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-96747.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-96747'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2540686'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-96747'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96747'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-24T18:36:00.653378Z'
ingestedAt: '2026-09-24T18:49:36.722Z'
scores:
  nvd: 5
  vendor: 4.3
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat OpenShift AI (RHOAI), Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1 · no fix planned: Red Hat OpenStack Platform 13 (Queens), Red Hat OpenStack Platform 16.2, Red Hat OpenStack Platform 17.1, Red Hat OpenShift AI (RHOAI) · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-96747.json)