Vulnerability Details CVE-2026-106432
The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 0.5%
CVSS Severity
CVSS v3 Score 3.6
References
Products affected by CVE-2026-106432
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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:1.20.0
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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:1.3.0
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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:2.1.2
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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_driver:2.4.1
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cpe:2.3:a:mongodb:php_driver:2.5.0
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cpe:2.3:a:mongodb:php_driver:2.5.1
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cpe:2.3:a:mongodb:php_driver:2.5.2