CVE-2026-34318: Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Shell. While the vulnerability is in MySQL Shell, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Shell accessible data. CVSS 3.1 Base Score 5.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N).
Overview
- Severity
- Medium (CVSS 5.8)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Apr
- Released
- 2026-05-07
- EPSS Score
- 0.26% (percentile: 17.5%)
Affected Products (1)
Open Source Software
- cbl2 mysql 8.0.45-3 on CBL Mariner 2.0
Revision History
- 2026-05-07: Information published.