Vulnerability in MySQL Connectors from Oracle MySQL
CVE-2026-83404

7.5HIGH

Key Information:

Vendor

Oracle
Status
Mysql Connectors
Vendor
CVE Published:
20 October 2026

What is CVE-2026-83404?

A serious vulnerability has been identified in Oracle's MySQL Connectors, specifically in version 26.7.0 of the Connector/Python component. This flaw allows unauthenticated attackers to remotely access MySQL Connectors via multiple network protocols. Exploitation of this vulnerability could lead to unauthorized access to sensitive data or even expose all accessible data within the MySQL Connectors environment. Organizations using this version should take immediate action to secure their systems and assess potential risks.

Affected Version(s)

MySQL Connectors 26.7.0

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.