CVE-2026-6231
MEDIUM EPSS 8.2%
Published Apr 13, 20262mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 4.0
Published Apr 13, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
The bson_validate function may return early on specific inputs and incorrectly report success. This behavior could result in skipping validation for BSON data, allowing malformed or invalid UTF-8 sequences to bypass validation and be processed incorrectly. The issue may affect applications that rely on these functions to validate untrusted BSON data before further processing. This issue affects MongoDB C Driver versions prior to 1.30.5, MongoDB C Driver version 2.0.0 and MongoDB C Driver version 2.0.1
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
8.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-20 Improper Input Validation Validation
Affected Products 2
References 1
- jira.mongodb.org https://jira.mongodb.org/browse/CDRIVER-6017
Remediation
- jira.mongodb.org https://jira.mongodb.org/browse/CDRIVER-6017