MongoDBCVE-2026-81490
MongoDB BI Connector: null pointer dereference
High8.3CVE-2026-81490 · Published Aug 28, 2026 · updated Sep 1, 2026
A database user able to create a view in a namespace that MongoDB Connector for BI samples can cause the schema-sampling routine to stop functioning by defining a view whose evaluation reliably fails. The sampling logic classifies the resulting server message as transient and, after the configured retries are exhausted, proceeds without a valid result, ending the schema refresh routine. The mongosqld process continues running without a usable schema, so SQL clients are unable to obtain results until an operator removes the view or excludes its namespace from sampling.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| BI Connector Product | < 2.14.31 | 2.14.31 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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-476
More MongoDB advisories
All MongoDB| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| 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 ODBC Driver: stack buffer overflow | Medium6.0 | 1.4.10 |
| Aug 28 | MongoDB BI Connector: SQL injection | High8.5 | 2.14.31 |