Vulnerability Details CVE-2026-81533
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 11.2%
CVSS Severity
CVSS v3 Score 7.1
Products affected by CVE-2026-81533
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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
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cpe:2.3:a:mongodb:bi_connector_odbc_driver:1.4.9