CVE-2026-81533

MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values

Published: Aug 28, 2026Updated: Sep 11, 2026 Sources: CVE List NVDCWE-121

7.1HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:LIntegrity

Low

A:HAvailability

High

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Weaknesses

CWE-121

Affected Products

MongoDB

commercial·US

BI Connector ODBC Driver

Databases

and 1 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Privilege Escalation

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References

https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases

github.com

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