Mongodb: >> Php Driver >> 1.19.2 Security Vulnerabilities
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.
CVSS Score
6.3
EPSS Score
0.003
Published
2026-10-08
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.
CVSS Score
2.0
EPSS Score
0.002
Published
2026-10-08
An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.
CVSS Score
6.9
EPSS Score
0.002
Published
2026-09-03
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 Score
8.6
EPSS Score
0.005
Published
2026-08-27
A mongoc_bulk_operation_t may read invalid memory if large options are passed.
CVSS Score
6.9
EPSS Score
0.002
Published
2025-11-18