What’s Vulnerable › Vulnerabilities
CVE-2026-81533: MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values
- Severity: high (CVSS 7.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-28 · updated 2026-09-11
- Weakness: CWE-121
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
- MongoDB BI Connector ODBC Driver: before 1.4.10 — fixed in 1.4.10
How to fix
Upgrade to a fixed version: MongoDB BI Connector ODBC Driver 1.4.10. Check the vendor advisory for mitigations.
References
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