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CVE-2026-106428

CVE-2026-106428 · Out-of-bounds read in SCRAM response parsing in MongoDB C Driver

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

An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.

CVSS 6.3 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • c driver

    Versions
    • ≥ 1.1.0, < 1.30.13: Affected (semver)
    • ≥ 2.0.0, < 2.4.0: Affected (semver)

    Update to 1.30.13; Update to 2.4.0

  • mongo-c-driver Debian:12

    Versions
    • 1.23.1-1
    • 1.23.1-1+deb12u1
    • 1.23.1-1+deb12u2
    • 1.23.1-1+deb12u3
    • 1.24.1-1
    • 1.24.2-1
    • 1.24.3-1
    • 1.24.4-1
    • 1.25.0-1
    • 1.25.1-1
    • 1.25.2-1
    • 1.25.4-1
    • 1.25.4-1.1~exp1
    • 1.26.0-1
    • 1.26.0-1.1
    • 1.26.0-1.1~exp1
    • 1.26.1-1
    • 1.26.2-1
    • 1.27.0-1
    • 1.27.1-1
    • 1.27.2-1
    • 1.27.3-1
    • 1.27.4-1
    • 1.27.5-1
    • 1.27.6-1
    • 1.28.0-1
    • 1.28.1-1
    • 1.29.0-1
    • 1.29.1-1
    • 1.29.2-1
    • 1.30.0-1
    • 1.30.1-1
    • 1.30.2-1
    • 1.30.3-1
    • 1.30.4-1
    • 2.0.2-1
    • 2.1.0-1
    • 2.1.1-1
    • 2.1.2-1
    • 2.2.0-1
    • 2.2.1-1
    • 2.2.2-1
    • 2.2.3-1
    • 2.2.4-1
    • 2.3.0-1
    • 2.3.1-1
    • 2.3.2-1
    • 2.3.3-1
    • 2.4.0-1
    • 2.5.0-1
    • 2.5.1-1
    • 2.5.2-1
    • 2.5.3-1
    • 2.5.5-1
    • 2.5.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mongo-c-driver Debian:13

    Versions
    • 1.30.4-1
    • 1.30.4-1+deb13u1
    • 1.30.4-1+deb13u2
    • 1.30.4-1+deb13u3
    • 2.0.2-1
    • 2.1.0-1
    • 2.1.1-1
    • 2.1.2-1
    • 2.2.0-1
    • 2.2.1-1
    • 2.2.2-1
    • 2.2.3-1
    • 2.2.4-1
    • 2.3.0-1
    • 2.3.1-1
    • 2.3.2-1
    • 2.3.3-1
    • 2.4.0-1
    • 2.5.0-1
    • 2.5.1-1
    • 2.5.2-1
    • 2.5.3-1
    • 2.5.5-1
    • 2.5.6-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mongo-c-driver Debian:14

    Versions
    • 1.30.4-1
    • 2.0.2-1
    • 2.1.0-1
    • 2.1.1-1
    • 2.1.2-1
    • 2.2.0-1
    • 2.2.1-1
    • 2.2.2-1
    • 2.2.3-1
    • 2.2.4-1
    • 2.3.0-1
    • 2.3.1-1
    • 2.3.2-1
    • 2.3.3-1
    Affected ranges
    • ECOSYSTEM: < 2.4.0-1

    Update to 2.4.0-1

  • mongo-c-driver Ubuntu:Pro:20.04:LTS

    Versions
    • 1.15.0-1
    • 1.15.1-1
    • 1.15.2-1
    • 1.16.0-1
    • 1.16.1-1
    • 1.16.1-1build1
    • 1.16.1-1build2
    • 1.16.1-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mongo-c-driver Ubuntu:Pro:22.04:LTS

    Versions
    • 1.18.0-1
    • 1.19.1-1
    • 1.19.2-1
    • 1.20.0-1
    • 1.20.0-1build1
    • 1.20.1-1
    • 1.21.0-1
    • 1.21.0-1build1
    • 1.21.0-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mongo-c-driver Ubuntu:Pro:24.04:LTS

    Versions
    • 1.24.3-1
    • 1.24.4-1
    • 1.25.1-1
    • 1.25.2-1
    • 1.25.4-1
    • 1.26.0-1
    • 1.26.0-1.1ubuntu1
    • 1.26.0-1.1ubuntu2
    • 1.26.0-1.1ubuntu2+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mongo-c-driver Ubuntu:26.10

    Versions
    • 2.2.2-1
    • 2.3.1-1
    • 2.3.2-1
    • 2.3.3-1build1
    • 2.5.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • mongo-c-driver Ubuntu:26.04:LTS

    Versions
    • 1.30.4-1ubuntu1
    • 2.2.0-1
    • 2.2.1-1
    • 2.2.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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