CVE-2026-34267
published 2026-04-21CVE-2026-34267: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45. Easily…
medium4.9CVSS 3.1
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Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45. Easily exploitable vulnerability allows high 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mysql_8.0 | mysql | — | — |
| mysql_8.4 | mysql | — | — |
| oracle | mysql | — | — |
| oracle | mysql_server | 8.0.0 – 8.0.45 | — |
| oracle_corporation | mysql_server | 8.0.0 – 8.0.45 | — |
| ubuntu | mysql-8.0 | — | — |
| ubuntu | mysql-8.4 | — | — |