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CVE-2026-6811

CVE-2026-6811 · PHP Stack Exhaustion

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

Stack exhaustion vulnerability in the MongoDB PHP driver can cause application crashes when processing deeply nested BSON documents in unusual circumstances when the source of these BSON documents is not MongoDB Server.

CVSS 6.0 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • php driver

    Versions
    • 1.21.5: Affected (semver)
    • 2.1.8: Affected (semver)

    No fix published

  • php-mongodb Debian:12

    Versions
    • 1.15.0+1.11.1+1.9.2+1.7.5-1
    • 1.19.3-1
    • 1.19.4-2
    • 1.19.4-3~exp2
    • 1.19.4-3~exp3
    • 1.19.4-3~exp4
    • 1.20.0-1
    • 1.20.1-1
    • 1.21.0-1
    • 2.0.0-1
    • 2.1.0-1
    • 2.5.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Debian:13

    Versions
    • 2.0.0-1
    Affected ranges
    • ECOSYSTEM: < 2.0.0-1+deb13u1

    Update to 2.0.0-1+deb13u1

  • php-mongodb Debian:14

    Versions
    • 2.0.0-1
    • 2.1.0-1
    Affected ranges
    • ECOSYSTEM: < 2.5.3-1

    Update to 2.5.3-1

  • php-mongodb Ubuntu:16.04:LTS

    Versions
    • 1.1.2-2~ubuntu1
    • 1.1.5-1~build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:18.04:LTS

    Versions
    • 1.2.3-1build1
    • 1.3.4-1build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:20.04:LTS

    Versions
    • 1.5.5-1build1
    • 1.6.1-4
    • 1.6.1-4build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:22.04:LTS

    Versions
    • 1.9.0+1.7.5-2build2
    • 1.11.1+1.9.2+1.7.5-4
    • 1.12.0+1.9.2+1.7.5-3
    • 1.12.0+1.9.2+1.7.5-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:24.04:LTS

    Versions
    • 1.15.0+1.11.1+1.9.2+1.7.5-1build1
    • 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu1
    • 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu2
    • 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:25.10

    Versions
    • 1.21.0-1
    • 2.0.0-1
    • 2.1.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:26.10

    Versions
    • 2.1.7-0ubuntu1
    • 2.1.7-0ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Ubuntu:26.04:LTS

    Versions
    • 2.1.0-1
    • 2.1.7-0ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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