MongoDB BI Connector ODBC Driver up to 1.4.8 File/Folder Selection buffer overflow

Summaryinfo

A vulnerability identified as very critical has been detected in MongoDB BI Connector ODBC Driver up to 1.4.8. This vulnerability affects unknown code of the component File/Folder Selection Handler. This manipulation causes buffer overflow. This vulnerability appears as CVE-2026-19003. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in MongoDB BI Connector ODBC Driver up to 1.4.8. It has been declared as very critical. Affected by this vulnerability is some unknown functionality of the component File/Folder Selection Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-19003 since 08/05/2026. The exploitation appears to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/12/2026).

Upgrading to version 1.4.9 eliminates this vulnerability.

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Productinfo

Type

• Database Software

Vendor

• MongoDB

Name

• BI Connector ODBC Driver

Version

• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 1.4.4
• 1.4.5
• 1.4.6
• 1.4.7
• 1.4.8

License

• open-source

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CPE 2.2info

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