CVE-2026-34318

MEDIUM severity · CVSS 5.8 · Information disclosure

5.8CVSS MEDIUM

Summary

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).

Impact & exploitability

Attack vectorNetwork

Attack complexityHigh

Privileges requiredHigh

User interactionNone

Confidentiality impactHigh

Integrity impactNone

Availability impactNone

Exploit probability (EPSS)0%

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Affected products we track (1)

MySQL

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

CVE-2026-34318

Summary

Impact & exploitability

Affected products we track (1)

Recommendation

Additional information