CVE-2026-19003— MongoDB BI Connector ODBC driver may write outside an allocated buffer when the setup dialog opens a data source with oversized path settings
Quick assessment
Affected
MongoDB BI Connector ODBC Driver
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
MongoDB BI Connector ODBC Driver是美国MongoDB公司的一款数据库连接驱动软件。 MongoDB BI Connector ODBC Driver 1.0.0版本至1.4.9之前版本存在缓冲区错误漏洞，该漏洞源于文件和文件夹选择处理中缓冲区容量计算错误，可能导致进程异常终止，特定条件下执行未预期代码。
Possible ATT&CK Techniques 1 AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MongoDB | BI Connector ODBC Driver | 1.0.0< 1.4.9 |
affected |
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I. Basic Information for CVE-2026-19003
Vulnerability Information
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Vulnerability Title
MongoDB BI Connector ODBC driver may write outside an allocated buffer when the setup dialog opens a data source with oversized path settings
Source: CVE Program / CVE List V5
Vulnerability Description
A data source definition containing an over-length file path setting may cause the MongoDB BI Connector ODBC Driver setup dialog to write outside the bounds of an allocated buffer. The issue stems from an incorrect buffer capacity calculation in the dialog's file and folder selection handling, and is reached only when a user opens the setup dialog for such a data source and initiates a file or folder selection. Depending on build configuration, the result may range from abnormal process termination to, under certain conditions, execution of unintended code in the context of the user running the dialog.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB BI Connector ODBC Driver 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB BI Connector ODBC Driver是美国MongoDB公司的一款数据库连接驱动软件。 MongoDB BI Connector ODBC Driver 1.0.0版本至1.4.9之前版本存在缓冲区错误漏洞，该漏洞源于文件和文件夹选择处理中缓冲区容量计算错误，可能导致进程异常终止，特定条件下执行未预期代码。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB | BI Connector ODBC Driver | 1.0.0 ~ 1.4.9 | - |
|
II. Public POCs for CVE-2026-19003
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
Qwen3.6-35B-A3B
· 124002 chars
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III. Intelligence Information for CVE-2026-19003
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Vendor Pages for CVE-2026-19003 (1)
Same Patch Batch · MongoDB · 2026-08-12 · 7 CVEs total
| CVE-2026-19001 | 9.8 CRITICAL | MongoDB BI Connector ODBC driver may write outside an allocated buffer when handling overs |
| CVE-2026-19002 | 8.1 HIGH | Crafted database metadata may cause memory corruption in MongoDB BI Connector ODBC Driver |
| CVE-2026-19004 | 8.1 HIGH | MongoDB BI Connector ODBC Driver Memory-Safety Issue When Handling Stored Procedure Output |
| CVE-2026-18888 | 6.5 MEDIUM | MongoDB BI Connector ODBC driver may write outside an allocated buffer when retrieving lar |
| CVE-2026-19502 | 5.5 MEDIUM | Insufficient redaction of sensitive configuration values in diagnostic output of MongoDB S |
| CVE-2026-19503 | 4.8 MEDIUM | Insufficient OIDC endpoint validation could invoke unintended local protocol handlers |
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V. Comments for CVE-2026-19003
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