Vulnerability · Published Oct 20, 2026 · Assigned by oracle

CVE-2026-101769

High 7.0

In plain English

A high-severity improper access control in MySQL Cluster from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)7.0High

Exploit odds (30 days)0.3%top 79.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Vulnerability in the MySQL Cluster product of Oracle MySQL (component: Cluster: General). Supported versions that are affected are 26.7.0-26.7.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCP to compromise MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Cluster as well as unauthorized update, insert or delete access to some of MySQL Cluster accessible data and unauthorized read access to a subset of MySQL Cluster accessible data. CVSS 3.1 Base Score 7.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H).

Affected products (as reported)

Vendor	Product	Versions
Oracle Corporation	MySQL Cluster	26.7.0-26.7.1

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

References

Oracle Advisory vendor-advisory