CVE-2026-34308

MediumCVSS 6.5/10Last modified Oct 26, 2026

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: JSON). 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. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

VendorProductVersions
Oracle CorporationMySQL Server>= 8.0.0, <= 8.0.45; >= 8.4.0, <= 8.4.8; >= 9.0.0, <= 9.6.0

References

Timeline

Published
Apr 21, 2026
Last modified
Oct 26, 2026
NVD status
Analyzed

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