CVE Tools
Sign in

CVE-2026-6231

bson_validate may skip validation when processing certain inputs

Published: Apr 13, 2026Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-20
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.2%
Top 91.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

C DriverMongoDB Inc.
Mixed
Databases / nosql
c drivermongodbDatabases
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
MongoDB C DriverMongoDB Inc.
Mixed
Databases / nosql
mongodb inc.commercialUSDatabasesaka mongodb, mongodb server, mongodb ops manager
mongodbcommercialUSDatabases
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://jira.mongodb.org/browse/CDRIVER-6017
jira.mongodb.org
https://jira.mongodb.org/browse/CDRIVER-6017
jira.mongodb.org
https://redos.red-soft.ru/search/?iblock_id=&q=CVE-2026-6231
redos.red-soft.ru
and 1 more references View all →

Timeline

Published
Apr 13, 2026
Last Updated
May 6, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-6231 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows