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I. Basic Information for CVE-2026-6231
Vulnerability Information

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Vulnerability Title
bson_validate may skip validation when processing certain inputs
Source: NVD (National Vulnerability Database)
Vulnerability 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
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
MongoDB C Driver 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB C Driver是MongoDB开源的一个用于在C语言程序中连接和操作MongoDB数据库的客户端驱动库。 MongoDB C Driver 1.30.5之前版本、2.0.0版本和2.0.1版本存在安全漏洞,该漏洞源于bson_validate函数可能提前返回并错误报告成功,导致跳过BSON数据验证,可能允许处理格式错误或无效的UTF-8序列。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
MongoDB Inc.C Driver 1.0 ~ 1.30.5 -
II. Public POCs for CVE-2026-6231
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III. Intelligence Information for CVE-2026-6231
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IV. Related Vulnerabilities
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