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CVE-2026-81525

CVE-2026-81525 · Cross-tenant database retargeting via dot/NUL injection in namespace strings in the PHP Driver

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

The MongoDB client library for PHP does not sufficiently sanitize special elements in application-supplied namespace identifiers before using them to construct the target namespace for database operations. An application that incorporates untrusted text into these identifiers may have operations silently directed at a different storage location than the one the application intended.

CVSS 8.6 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: system · php

Affected products and versions

  • php library

    Versions
    • ≥ 0, < 1.21.4: Affected (semver)
    • ≥ 2.0.0, < 2.4.1: Affected (semver)

    Update to 1.21.4; Update to 2.4.1

  • php extension

    Versions
    • ≥ 0, < 1.21.6: Affected (semver)
    • ≥ 2.0.0, < 2.4.1: Affected (semver)

    Update to 1.21.6; Update to 2.4.1

  • 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
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • php-mongodb Debian:13

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

    No fix published

  • php-mongodb Debian:14

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

    No fix published

  • mongodb/mongodb Packagist

    Versions
    • 0.1.0
    • 0.2.0
    • 1.0.0
    • 1.0.0-alpha1
    • 1.0.0-beta1
    • 1.0.0-beta2
    • 1.0.1
    • 1.0.2
    • 1.0.3
    • 1.0.4
    • 1.0.5
    • 1.1.0
    • 1.1.0-alpha1
    • 1.1.1
    • 1.1.2
    • 1.10.0
    • 1.10.1
    • 1.11.0
    • 1.12.0
    • 1.13.0
    • 1.13.0-beta1
    • 1.13.1
    • 1.15.0
    • 1.16.0
    • 1.16.1
    • 1.17.0
    • 1.17.1
    • 1.18.0
    • 1.19.0
    • 1.19.1
    • 1.2.0
    • 1.2.0-alpha1
    • 1.20.0
    • 1.21.0
    • 1.21.1
    • 1.21.2
    • 1.21.3
    • 1.3.0
    • 1.3.1
    • 1.3.2
    • 1.4.0
    • 1.4.1
    • 1.4.2
    • 1.4.3
    • 1.5.0
    • 1.5.1
    • 1.5.2
    • 1.6.0
    • 1.6.1
    • 1.7.0
    • 1.7.0-beta1
    • 1.7.0-beta2
    • 1.7.0-rc1
    • 1.7.1
    • 1.7.2
    • 1.8.0
    • 1.8.0-RC1
    • 1.9.0
    • 1.9.0-alpha1
    Affected ranges
    • ECOSYSTEM: < 1.21.4

    Update to 1.21.4

  • mongodb/mongodb Packagist

    Versions
    • 2.0.0
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.2.0
    • 2.3.0
    • 2.4.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.0.0, < 2.4.1

    Update to 2.4.1

  • 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: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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