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CVE-2026-96747

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 5.3 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • python driver

    Versions
    • ≥ 3.9.0, < 4.18.2: Affected (semver)

    Update to 4.18.2

  • pymongo Debian:12

    Versions
    • 3.11.0-1
    • 3.11.0-1+deb12u1
    • 4.10.1-1
    • 4.10.1-2
    • 4.10.1-3
    • 4.10.1-4
    • 4.10.1-5
    • 4.10.1-6
    • 4.15.3-1
    • 4.15.3-2
    • 4.15.4-1
    • 4.15.4-2
    • 4.15.5-1
    • 4.16.0-1
    • 4.17.0-1
    • 4.18.1-1
    • 4.18.2-1
    • 4.7.3-1
    • 4.7.3-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Debian:13

    Versions
    • 4.10.1-6
    • 4.15.3-1
    • 4.15.3-2
    • 4.15.4-1
    • 4.15.4-2
    • 4.15.5-1
    • 4.16.0-1
    • 4.17.0-1
    • 4.18.1-1
    • 4.18.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Debian:14

    Versions
    • 4.10.1-6
    • 4.15.3-1
    • 4.15.3-2
    • 4.15.4-1
    • 4.15.4-2
    • 4.15.5-1
    • 4.16.0-1
    • 4.17.0-1
    • 4.18.1-1
    Affected ranges
    • ECOSYSTEM: < 4.18.2-1

    Update to 4.18.2-1

  • pymongo PyPI

    Versions
    • 3.10.0
    • 3.10.1
    • 3.11.0
    • 3.11.1
    • 3.11.2
    • 3.11.3
    • 3.11.4
    • 3.12.0
    • 3.12.1
    • 3.12.2
    • 3.12.3
    • 3.13.0
    • 3.9.0
    • 4.0
    • 4.0.1
    • 4.0.2
    • 4.1.0
    • 4.1.1
    • 4.10.0
    • 4.10.1
    • 4.11
    • 4.11.1
    • 4.11.2
    • 4.11.3
    • 4.12.0
    • 4.12.1
    • 4.13.0
    • 4.13.0.dev0
    • 4.13.1
    • 4.13.2
    • 4.14.0
    • 4.14.1
    • 4.15.0
    • 4.15.1
    • 4.15.2
    • 4.15.3
    • 4.15.4
    • 4.15.5
    • 4.16.0
    • 4.16.0.dev0
    • 4.17.0
    • 4.18.0
    • 4.18.1
    • 4.2.0
    • 4.3.2
    • 4.3.3
    • 4.4.0
    • 4.4.0b0
    • 4.4.1
    • 4.5.0
    • 4.6.0
    • 4.6.1
    • 4.6.2
    • 4.6.3
    • 4.7.0
    • 4.7.1
    • 4.7.2
    • 4.7.3
    • 4.8.0
    • 4.8.0b0
    • 4.9
    • 4.9.1
    • 4.9.2
    Affected ranges
    • ECOSYSTEM: ≥ 3.9.0, < 4.18.2

    Update to 4.18.2

  • pymongo Ubuntu:14.04:LTS

    Versions
    • 2.6-1
    • 2.6.2-1
    • 2.6.3-1
    • 2.6.3-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:Pro:16.04:LTS

    Versions
    • 3.0.3-1
    • 3.2-1
    • 3.2-1build1
    • 3.2-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:Pro:18.04:LTS

    Versions
    • 3.4.0-1build2
    • 3.6.1+dfsg1-1
    • 3.6.1+dfsg1-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:20.04:LTS

    Versions
    • 3.7.1-1.1
    • 3.7.1-1.1build1
    • 3.10.1-0ubuntu2
    • 3.10.1-0ubuntu2.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:22.04:LTS

    Versions
    • 3.11.0-1build2
    • 3.11.0-1build3
    • 3.11.0-1build4
    • 3.11.0-1ubuntu0.22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:24.04:LTS

    Versions
    • 3.11.0-1build6
    • 3.11.0-1build7
    • 3.11.0-1build8
    • 3.11.0-1ubuntu0.24.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:26.10

    Versions
    • 4.16.0-1build1
    • 4.17.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • pymongo Ubuntu:26.04:LTS

    Versions
    • 4.10.1-6
    • 4.15.3-1
    • 4.15.3-2
    • 4.15.5-1
    • 4.16.0-1
    • 4.16.0-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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