CVE-2026-18888 - MongoDB BI Connector ODBC driver may write outside an allocated buffer when retrieving large floating point values as character data
Brief
CVE ID : CVE-2026-18888
Published : Aug. 12, 2026, 8:29 p. m.
- 35 minutes ago
Description : 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.
Severity: 7.1
- HIGH
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