MongoDB BI Connector ODBC Driver Buffer Overflow in Setup Dialog
CVE-2026-19003 Published on August 12, 2026
MongoDB BI Connector ODBC driver may write outside an allocated buffer when the setup dialog opens a data source with oversized path settings
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.
Vulnerability Analysis
CVE-2026-19003 can be exploited with local system access. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-19003 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2026-19003
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Affected Versions
MongoDB BI Connector ODBC Driver:- Version 1.0.0 and below 1.4.9 is affected.