CVE-2026-106428
Published:October 08, 2026
Updated:October 10, 2026
An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.
Affected Packages
mongo-c-driver (CONAN):
Affected version(s) >=2.2.0 <2.5.4Fix Suggestion:
Update to version 2.5.4https://github.com/mongodb/mongo-c-driver.git (GITHUB):
Affected version(s) >=2.0.0 <2.4.0Fix Suggestion:
Update to version 2.4.0https://github.com/mongodb/mongo-c-driver.git (GITHUB):
Affected version(s) >=1.1.0-rc0 <1.30.13Fix Suggestion:
Update to version 1.30.13Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Out-of-bounds Read
EPSS
Base Score:
0.24