Vulnerability Details CVE-2026-18888
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 24.3%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-18888
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.0.0
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.1.0
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.2.0
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.3.0
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.0
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.1
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.2
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.3
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.4
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.5
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.6
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.7
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.8