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High · 7.1 CVE-2026-81533 EUVD-2026-67943GHSA-gj6m-p8hr-868g

MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values

Published Aug 28, 2026 · Updated Aug 31, 2026 · Assigned by mongodb

Description

An application using the MongoDB BI Connector ODBC Driver may encounter a memory-safety issue when a submitted SQL statement contains an unusually long run of digits following a LIMIT clause. The issue occurs only on connections where the driver's optional prefetch setting is enabled, and stems from the driver copying the digit sequence into a fixed-size internal buffer without checking its length. A user able to influence the numeric portion of a LIMIT clause could cause the hosting application process to terminate unexpectedly or corrupt adjacent memory in that process.

Affected products

VendorProductAffectedFixed
MongoDB BI Connector ODBC Driver < 1.4.10 1.4.10

Advisories 1

References