CVE-2026-6231

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Source
https://cve.org/CVERecord?id=CVE-2026-6231
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6231.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-6231
Downstream
Published
2026-04-13T15:31:55.735Z
Modified
2026-07-08T08:11:37.200406804Z
Severity
  • 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
bson_validate may skip validation when processing certain inputs
Details

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

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "1.0"
                },
                {
                    "fixed": "1.30.5"
                },
                {
                    "introduced": "2.0"
                },
                {
                    "fixed": "2.0.2"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6231.json",
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-20"
    ]
}
References

Affected packages

Git / github.com/mongodb/mongo-c-driver

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo-c-driver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
252989c310f7a326230f66311630ba259e34e4b3
Introduced
67817df0a9ed11b07e457477e6db1384da9421c4
Fixed
d94ed7a504c227fa8a69d979abff485174f3cf5d
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:mongodb:c_driver:*:*:*:*:*:mongodb:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.30.5"
        },
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "2.0.2"
        }
    ]
}

Affected versions

0.*
0.90.0
0.92.0
0.92.2
0.94.0
0.94.2
0.96.0
0.96.4
0.98.0
0.98.2
1.*
1.0.0
1.0.2
1.1.0
1.1.0-rc0
1.1.10
1.1.11
1.1.2
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8
1.1.9
1.11.0
1.3.0
1.3.0-rc0
1.30.0
1.30.1
1.30.2
1.30.3
1.30.4
1.4.0-beta1
1.5.0-rc0
1.5.0-rc1
1.5.0-rc2
1.5.0-rc3
1.5.0-rc4
1.6.0
1.6.0-rc0
1.7.0-rc0
1.9.0-rc0
1.9.0-rc1
2.*
2.0.0
2.0.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6231.json"