CVE-2026-71084 Denial of service in MySQL Connectors

Medium 6.8 Published 18 Aug 2026 Updated 19 Aug 2026

An unauthenticated local attacker can crash the MySQL ODBC Connector and read accessible data, requiring a patch to mitigate.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-71084?

CVE-2026-71084 is a medium-severity denial of service vulnerability in Oracle Corporation MySQL Connectors, published on 18 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/ODBC). The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Connectors executes to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors and unauthorized read access to a subset of MySQL Connectors accessible data. CVSS 3.1 Base Score 6.8 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H).

Weakness: CWE-284

Which versions are affected by CVE-2026-71084?

It affects 1 product.

Products include Oracle Mysql Connector\/Odbc.

How do I fix CVE-2026-71084?

No fix has been published for CVE-2026-71084 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-71084 being exploited?

There is no known exploitation of CVE-2026-71084 in the wild and no public exploit code.

Sources

Also known as GHSA-vpv7-xq2h-vxfp, UBUNTU-CVE-2026-71084.