CVE-2026-18888

Summary

The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the result fits within the destination buffer. When an application reads a sufficiently large floating point value as text, the driver may write beyond the end of that buffer and corrupt adjacent memory. A user who can store data in a collection read through the BI Connector could use this to crash the application performing the read.

Affected Software

VendorProductVersion RangeStatus
MongoDBBI Connector ODBC Driver1.0.0 < 1.4.9affected

Weaknesses

  • CWE-787: CWE-787: Out-of-bounds write

References