Vulnerability Details CVE-2026-81525
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 42.1%
CVSS Severity
CVSS v3 Score 8.1
Products affected by CVE-2026-81525
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cpe:2.3:a:mongodb:php_driver:0.1.0
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cpe:2.3:a:mongodb:php_driver:0.1.1
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cpe:2.3:a:mongodb:php_driver:0.1.2
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cpe:2.3:a:mongodb:php_driver:0.1.3
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cpe:2.3:a:mongodb:php_driver:0.1.4
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cpe:2.3:a:mongodb:php_driver:0.1.5
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cpe:2.3:a:mongodb:php_driver:0.2.0
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cpe:2.3:a:mongodb:php_driver:0.3.0
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cpe:2.3:a:mongodb:php_driver:0.3.1
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cpe:2.3:a:mongodb:php_driver:0.4.0
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cpe:2.3:a:mongodb:php_driver:0.4.1
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cpe:2.3:a:mongodb:php_driver:0.5.0
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cpe:2.3:a:mongodb:php_driver:0.5.1
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cpe:2.3:a:mongodb:php_driver:0.6.0
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cpe:2.3:a:mongodb:php_driver:0.6.1
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cpe:2.3:a:mongodb:php_driver:0.6.2
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cpe:2.3:a:mongodb:php_driver:0.6.3
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cpe:2.3:a:mongodb:php_driver:1.0.0
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cpe:2.3:a:mongodb:php_driver:1.0.1
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cpe:2.3:a:mongodb:php_driver:1.1.0
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cpe:2.3:a:mongodb:php_driver:1.1.1
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cpe:2.3:a:mongodb:php_driver:1.1.10
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cpe:2.3:a:mongodb:php_driver:1.1.2
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cpe:2.3:a:mongodb:php_driver:1.1.3
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cpe:2.3:a:mongodb:php_driver:1.1.4
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cpe:2.3:a:mongodb:php_driver:1.1.5
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cpe:2.3:a:mongodb:php_driver:1.1.6
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cpe:2.3:a:mongodb:php_driver:1.1.7
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cpe:2.3:a:mongodb:php_driver:1.1.8
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cpe:2.3:a:mongodb:php_driver:1.1.9
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cpe:2.3:a:mongodb:php_driver:1.10.0
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cpe:2.3:a:mongodb:php_driver:1.11.0
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cpe:2.3:a:mongodb:php_driver:1.11.1
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cpe:2.3:a:mongodb:php_driver:1.12.0
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cpe:2.3:a:mongodb:php_driver:1.12.1
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cpe:2.3:a:mongodb:php_driver:1.13.0
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cpe:2.3:a:mongodb:php_driver:1.14.0
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cpe:2.3:a:mongodb:php_driver:1.14.1
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cpe:2.3:a:mongodb:php_driver:1.14.2
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cpe:2.3:a:mongodb:php_driver:1.15.0
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cpe:2.3:a:mongodb:php_driver:1.15.1
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cpe:2.3:a:mongodb:php_driver:1.15.2
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cpe:2.3:a:mongodb:php_driver:1.15.3
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cpe:2.3:a:mongodb:php_driver:1.16.0
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cpe:2.3:a:mongodb:php_driver:1.16.1
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cpe:2.3:a:mongodb:php_driver:1.16.2
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cpe:2.3:a:mongodb:php_driver:1.17.0
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cpe:2.3:a:mongodb:php_driver:1.17.1
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cpe:2.3:a:mongodb:php_driver:1.17.2
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cpe:2.3:a:mongodb:php_driver:1.17.3
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cpe:2.3:a:mongodb:php_driver:1.18.0
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cpe:2.3:a:mongodb:php_driver:1.18.1
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cpe:2.3:a:mongodb:php_driver:1.19.0
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cpe:2.3:a:mongodb:php_driver:1.19.1
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cpe:2.3:a:mongodb:php_driver:1.19.2
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cpe:2.3:a:mongodb:php_driver:1.19.3
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cpe:2.3:a:mongodb:php_driver:1.19.4
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cpe:2.3:a:mongodb:php_driver:1.2.0
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cpe:2.3:a:mongodb:php_driver:1.2.1
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cpe:2.3:a:mongodb:php_driver:1.2.10
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cpe:2.3:a:mongodb:php_driver:1.2.11
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cpe:2.3:a:mongodb:php_driver:1.2.2
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cpe:2.3:a:mongodb:php_driver:1.2.3
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cpe:2.3:a:mongodb:php_driver:1.2.4
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cpe:2.3:a:mongodb:php_driver:1.2.5
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cpe:2.3:a:mongodb:php_driver:1.2.6
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cpe:2.3:a:mongodb:php_driver:1.2.7
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cpe:2.3:a:mongodb:php_driver:1.2.8
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cpe:2.3:a:mongodb:php_driver:1.2.9
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cpe:2.3:a:mongodb:php_driver:1.20.0
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cpe:2.3:a:mongodb:php_driver:1.20.1
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cpe:2.3:a:mongodb:php_driver:1.21.0
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cpe:2.3:a:mongodb:php_driver:1.21.1
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cpe:2.3:a:mongodb:php_driver:1.21.2
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cpe:2.3:a:mongodb:php_driver:1.21.4
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cpe:2.3:a:mongodb:php_driver:1.21.5
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cpe:2.3:a:mongodb:php_driver:1.3.0
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cpe:2.3:a:mongodb:php_driver:1.3.1
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cpe:2.3:a:mongodb:php_driver:1.3.2
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cpe:2.3:a:mongodb:php_driver:1.3.3
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cpe:2.3:a:mongodb:php_driver:1.3.4
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cpe:2.3:a:mongodb:php_driver:1.4.0
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cpe:2.3:a:mongodb:php_driver:1.4.1
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cpe:2.3:a:mongodb:php_driver:1.4.2
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cpe:2.3:a:mongodb:php_driver:1.4.3
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cpe:2.3:a:mongodb:php_driver:1.4.4
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cpe:2.3:a:mongodb:php_driver:1.5.0
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cpe:2.3:a:mongodb:php_driver:1.5.1
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cpe:2.3:a:mongodb:php_driver:1.5.2
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cpe:2.3:a:mongodb:php_driver:1.5.3
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cpe:2.3:a:mongodb:php_driver:1.5.4
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cpe:2.3:a:mongodb:php_driver:1.5.5
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cpe:2.3:a:mongodb:php_driver:1.6.0
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cpe:2.3:a:mongodb:php_driver:1.6.1
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cpe:2.3:a:mongodb:php_driver:1.7.0
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cpe:2.3:a:mongodb:php_driver:1.7.1
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cpe:2.3:a:mongodb:php_driver:1.7.2
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cpe:2.3:a:mongodb:php_driver:1.7.3
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cpe:2.3:a:mongodb:php_driver:1.7.4
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cpe:2.3:a:mongodb:php_driver:1.7.5
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cpe:2.3:a:mongodb:php_driver:1.8.0
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cpe:2.3:a:mongodb:php_driver:1.8.1
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cpe:2.3:a:mongodb:php_driver:1.8.2
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cpe:2.3:a:mongodb:php_driver:1.9.0
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cpe:2.3:a:mongodb:php_driver:1.9.1
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cpe:2.3:a:mongodb:php_driver:1.9.2
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cpe:2.3:a:mongodb:php_driver:2.0.0
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cpe:2.3:a:mongodb:php_driver:2.1.0
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cpe:2.3:a:mongodb:php_driver:2.1.1
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cpe:2.3:a:mongodb:php_driver:2.1.11
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cpe:2.3:a:mongodb:php_driver:2.1.2
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cpe:2.3:a:mongodb:php_driver:2.1.3
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cpe:2.3:a:mongodb:php_driver:2.1.4
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cpe:2.3:a:mongodb:php_driver:2.1.7
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cpe:2.3:a:mongodb:php_driver:2.1.8
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cpe:2.3:a:mongodb:php_driver:2.1.9
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cpe:2.3:a:mongodb:php_driver:2.2.0
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cpe:2.3:a:mongodb:php_driver:2.2.1
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cpe:2.3:a:mongodb:php_driver:2.3.0
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cpe:2.3:a:mongodb:php_driver:2.3.1
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cpe:2.3:a:mongodb:php_driver:2.3.2
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cpe:2.3:a:mongodb:php_driver:2.3.3
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cpe:2.3:a:mongodb:php_driver:2.4.0
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cpe:2.3:a:mongodb:php_library:0.1.0
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cpe:2.3:a:mongodb:php_library:0.2.0
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cpe:2.3:a:mongodb:php_library:1.0.0
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cpe:2.3:a:mongodb:php_library:1.0.1
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cpe:2.3:a:mongodb:php_library:1.0.2
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cpe:2.3:a:mongodb:php_library:1.0.3
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cpe:2.3:a:mongodb:php_library:1.0.4
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cpe:2.3:a:mongodb:php_library:1.0.5
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cpe:2.3:a:mongodb:php_library:1.1.0
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cpe:2.3:a:mongodb:php_library:1.1.1
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cpe:2.3:a:mongodb:php_library:1.1.2
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cpe:2.3:a:mongodb:php_library:1.10.0
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cpe:2.3:a:mongodb:php_library:1.10.1
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cpe:2.3:a:mongodb:php_library:1.11.0
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cpe:2.3:a:mongodb:php_library:1.12.0
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cpe:2.3:a:mongodb:php_library:1.13.0
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cpe:2.3:a:mongodb:php_library:1.13.1
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cpe:2.3:a:mongodb:php_library:1.15.0
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cpe:2.3:a:mongodb:php_library:1.16.0
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cpe:2.3:a:mongodb:php_library:1.16.1
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cpe:2.3:a:mongodb:php_library:1.17.0
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cpe:2.3:a:mongodb:php_library:1.17.1
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cpe:2.3:a:mongodb:php_library:1.18.0
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cpe:2.3:a:mongodb:php_library:1.19.0
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cpe:2.3:a:mongodb:php_library:1.19.1
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cpe:2.3:a:mongodb:php_library:1.2.0
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cpe:2.3:a:mongodb:php_library:1.20.0
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cpe:2.3:a:mongodb:php_library:1.21.0
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cpe:2.3:a:mongodb:php_library:1.21.1
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cpe:2.3:a:mongodb:php_library:1.21.2
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cpe:2.3:a:mongodb:php_library:1.21.3
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cpe:2.3:a:mongodb:php_library:1.3.0
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cpe:2.3:a:mongodb:php_library:1.3.1
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cpe:2.3:a:mongodb:php_library:1.3.2
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cpe:2.3:a:mongodb:php_library:1.4.0
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cpe:2.3:a:mongodb:php_library:1.4.1
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cpe:2.3:a:mongodb:php_library:1.4.2
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cpe:2.3:a:mongodb:php_library:1.4.3
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cpe:2.3:a:mongodb:php_library:1.5.0
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cpe:2.3:a:mongodb:php_library:1.5.1
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cpe:2.3:a:mongodb:php_library:1.5.2
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cpe:2.3:a:mongodb:php_library:1.6.0
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cpe:2.3:a:mongodb:php_library:1.6.1
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cpe:2.3:a:mongodb:php_library:1.7.0
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cpe:2.3:a:mongodb:php_library:1.7.1
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cpe:2.3:a:mongodb:php_library:1.7.2
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cpe:2.3:a:mongodb:php_library:1.8.0
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cpe:2.3:a:mongodb:php_library:1.9.0
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cpe:2.3:a:mongodb:php_library:2.0.0
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cpe:2.3:a:mongodb:php_library:2.1.0
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cpe:2.3:a:mongodb:php_library:2.1.1
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cpe:2.3:a:mongodb:php_library:2.1.2
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cpe:2.3:a:mongodb:php_library:2.2.0
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cpe:2.3:a:mongodb:php_library:2.3.0
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cpe:2.3:a:mongodb:php_library:2.4.0