CVE-2026-106436Medium· 4.8▾ SunlitThe 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…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 26.4 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
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.
php_driver >= 1.3.0, < 1.21.1php_driver >= 2.0.0, < 2.1.11php_driver >= 2.2.0, < 2.5.4Upgrade past the affected range:
php_driver 2.5.4Connected by shared product, vendor, weakness, or advisory.
CVE-2026-106432Low· 3.6The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation
CVE-2026-6811Medium· 5.9Stack 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-2026-81525High· 8.1The 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
CVE-2026-84968Medium· 5.3An 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 …
CVE-2026-114650Medium· 5.9Plaintext exposure of encrypted fields via ANSI code-page corruption of database name
CVE-2026-114654Medium· 6.5BSON output corruption via out-of-range binary subtype bypassing UUID and OldBinary guards