Mongodb Php Driver vulnerabilities

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Published CVEs affecting Mongodb Php Driver: 4 record(s), with affected versions and fixes.
cpe:2.3:a:mongodb:php_driver

CVE-2026-106436 Medium · 6.5 CWE-252 Oct 8, 2026

Application denial of service and data truncation via unchecked BSON append failures in MongoDB PHP Driver

The BSON encoder in the MongoDB PHP Driver does not check some return values after a document exceeds libbson's size limit. This can leave the encoder in an invalid state. An unauthenticated actor who can cause an affected application to encode an unusually large data structure can terminate the PHP worker or cause the resulting document to omit fields. No MongoDB server connection or database authentication is required.

CVE-2026-106432 High · 8.2 CWE-681 Oct 8, 2026

Heap buffer overflow via 32-bit string-length truncation in MongoDB PHP Driver

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.

CVE-2026-6811 High · 7.5 CWE-674 May 14, 2026

PHP Stack Exhaustion

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.

CVE-2025-12119 Low · 3.3 CWE-825 Nov 18, 2025

Bulk write with options may read invalid memory

A mongoc_bulk_operation_t may read invalid memory if large options are passed.