CVE-2026-81532: MongoDB BI Connector Odbc Driver

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A user able to submit SQL through an application using the MongoDB Connector for BI ODBC driver can supply a positioned-cursor statement whose cursor name exceeds the size of an internal fixed-length buffer. Because the name length is not bounded before the driver builds its diagnostic message, memory adjacent to that buffer is overwritten with user-supplied content. This can terminate the hosting application process and may allow unintended code to run within it.

Affected products

• MongoDB BI Connector Odbc Driver: before 1.4.10 (fixed in 1.4.10)

Published 2026-08-28. Last modified 2026-09-11.