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CVE-2026-106432

2.0 low SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 2.0 · mongodbNVD modified 2026-10-13 20:09

Affected (CPE criteria) 1

  • cpe:2.3:a:mongodb:php_driver:*:*:*:*:*:mongodb:*:*

References 1