CVE-2026-19004 MongoDB BI Connector ODBC Driver Memory-Safety Issue When Handling Stored Procedure Output Parameters

High 8.8 Published 12 Aug 2026 Updated 13 Aug 2026

An attacker controlling a database server can trigger memory corruption in the MongoDB BI Connector ODBC Driver, potentially leading to code execution or information disclosure.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-19004?

CVE-2026-19004 is a high-severity memory corruption vulnerability in MongoDB BI Connector ODBC Driver, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An application using the MongoDB BI Connector ODBC Driver may experience a memory-safety issue when processing output parameters from a stored procedure. Triggering this issue requires connecting to an untrusted or impersonated database server that returns crafted metadata. This may result in process termination, disclosure of process memory, or, under certain conditions, arbitrary code execution.

Weakness: CWE-122

Which versions are affected by CVE-2026-19004?

It affects 1 product.

Products include Mongodb Bi Connector Odbc Driver.

How do I fix CVE-2026-19004?

No fix has been published for CVE-2026-19004 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-19004 being exploited?

There is no known exploitation of CVE-2026-19004 in the wild and no public exploit code.

Sources

Also known as GHSA-fjxq-47rx-gwhh.