CVE-2026-19001 MongoDB BI Connector ODBC driver may write outside an allocated buffer when handling oversized catalog object names

Critical 9.5 Published 12 Aug 2026 Updated 13 Aug 2026

An attacker can trigger memory corruption and potential code execution by supplying oversized catalog object names to the MongoDB BI Connector ODBC driver.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-19001?

CVE-2026-19001 is a critical 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, with no action from the victim.

Official description

The MongoDB BI Connector ODBC Driver may write outside the bounds of a fixed-size buffer when an application supplies an unusually long catalog, schema, or object name to a metadata retrieval function. This may result in memory corruption within the calling application's process, leading to abnormal termination and, under certain conditions, the potential for arbitrary code execution.

Weakness: CWE-190

Which versions are affected by CVE-2026-19001?

It affects 1 product.

Products include Mongodb Bi Connector Odbc Driver.

How do I fix CVE-2026-19001?

No fix has been published for CVE-2026-19001 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-2026-19001 being exploited?

There is no known exploitation of CVE-2026-19001 in the wild and no public exploit code.

Sources

Also known as GHSA-qp3w-mm2v-5347.