CVE-2026-84968
Published:September 03, 2026
Updated:September 22, 2026
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.
Affected Packages
https://github.com/mongodb/mongo-php-driver.git (GITHUB):
Affected version(s) >=2.2.0 <2.5.1Fix Suggestion:
Update to version 2.5.1https://github.com/mongodb/mongo-php-driver.git (GITHUB):
Affected version(s) >=2.0.0 <2.1.9Fix Suggestion:
Update to version 2.1.9https://github.com/mongodb/mongo-php-driver.git (GITHUB):
Affected version(s) >=1.15.0 <1.21.8Fix Suggestion:
Update to version 1.21.8Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Out-of-bounds Read
EPSS
Base Score:
0.20