CVE-2026-6231
Last modified
CVE-2026-6231 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mongodb | C Driver | < 1.30.5 |
| Mongodb | C Driver | >= 2.0.0, < 2.0.2 |
References
- https://jira.mongodb.org/browse/CDRIVER-6017Issue Tracking, Patch
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-6231?
How severe is CVE-2026-6231?
How do I fix CVE-2026-6231?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-62294Flameshot is powerful yet simple to use screenshot software.…5.1
- CVE-2026-62295HAPI FHIR is a complete implementation of the HL7 FHIR stand…7.5
- CVE-2026-62296HAPI FHIR is a complete implementation of the HL7 FHIR stand…7.5
- CVE-2026-62299CoreDNS is a DNS server written in Go. Prior to 1.14.5, the …5.3
- CVE-2026-6230The Tainacan plugin for WordPress is vulnerable to time-base…7.5
- CVE-2026-62309CoreDNS is a DNS server written in Go. Prior to 1.14.4, a si…7.5
- CVE-2026-623129Router is an AI router & token saver. Prior to 0.5.2, 9Rout…8.8
- CVE-2026-62314Anubis is a Web AI Firewall Utility that challenges users' c…5.8
- CVE-2026-62323Cloudreve is a self-hosted file management and sharing syste…6.3
- CVE-2026-62324Jodit Editor is a WYSIWYG editor with a built-in file browse…5.4
- CVE-2026-62325goshs is a feature-rich single-binary file server for red te…9.1
- CVE-2026-623279Router through version 0.4.41 contains an unauthenticated i…9.3
Are you affected by CVE-2026-6231?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST