MongoDBCVE-2026-81533
MongoDB BI Connector ODBC Driver: stack buffer overflow
Medium6.0CVE-2026-81533 · Published Aug 28, 2026 · updated Sep 11, 2026
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| BI Connector ODBC Driver Product | < 1.4.10 | 1.4.10 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-121
More MongoDB advisories
All MongoDB| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 28 | MongoDB BI Connector: null pointer dereference | High8.3 | 2.14.31 |
| Aug 28 | An unauthenticated party able to reach the port of a MongoDB Connector for BI | High8.7 | 2.14.31 |
| Aug 28 | MongoDB BI Connector: improper certificate validation | High8.7 | 2.14.31 |
| Aug 28 | A network-reachable client | High8.7 | 2.14.31 |
| Aug 28 | MongoDB BI Connector ODBC Driver: stack buffer overflow | High8.7 | 1.4.10 |
| Aug 28 | MongoDB BI Connector: SQL injection | High8.5 | 2.14.31 |