CVE-2026-101678 Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J).

Medium 4.3 Published 20 Oct 2026 Updated 21 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-101678?

CVE-2026-101678 is a medium-severity vulnerability in Oracle Corporation MySQL Connectors, published on 20 Oct 2026.

Official description

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). The supported version that is affected is 26.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Connectors. CVSS 3.1 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L).

Weakness: CWE-284

Which versions are affected by CVE-2026-101678?

How do I fix CVE-2026-101678?

No fix has been published for CVE-2026-101678 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-101678 being exploited?

There is no known exploitation of CVE-2026-101678 in the wild and no public exploit code.

Sources

Also known as GHSA-mp57-mq2j-fxq6, UBUNTU-CVE-2026-101678.