Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 and prior. 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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Oracle | MySQL Server | 8.0.25 and prior | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | mysql-8.0 | 8.0.26-0ubuntu1 | — |
| Ubuntu 20.04 LTS | mysql-8.0 | 8.0.26-0ubuntu0.20.04.2 | USN-5022-1 |
| Ubuntu 18.04 LTS | mysql-5.7 | 5.7.35-0ubuntu0.18.04.1 | USN-5022-1 |
| Ubuntu 16.04 LTS | percona-server-5.6 +1 | No fix yet | — |
| Ubuntu 14.04 LTS | mysql-5.5 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | mecab | 0.996-1.module+el8.0.0+3898+e09bb8de.9 | RHSA-2021:3590 |
| RHEL 8 | mecab-ipadic +1 | 2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2021:3590 |
| RHEL 8 | mysql +6 | 8.0.26-1.module+el8.4.0+12359+b8928c02 | RHSA-2021:3590 |
| RHEL 3 | rh-mysql80-mysql +9 | 8.0.26-1.el7 | RHSA-2021:3811 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | mecab | 0.996-1.module_el8.4.0+2532+b8928c02.9 | ALSA-2021:3590 |
| AlmaLinux 8 | mecab-ipadic +1 | 2.7.0.20070801-16.module_el8.4.0+2532+b8928c02 | ALSA-2021:3590 |
| AlmaLinux 8 | mysql +6 | 8.0.26-1.module_el8.4.0+2532+b8928c02 | ALSA-2021:3590 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | mecab | 0.996-1.module+el8.3.0+242+87d3366a.9 | RLSA-2021:3590 |
| Rocky Linux 8 | mecab-ipadic | 2.7.0.20070801-16.module+el8.3.0+242+87d3366a | RLSA-2021:3590 |
| Rocky Linux 8 | mysql | 8.0.26-1.module+el8.4.0+652+6de068a7 | RLSA-2021:3590 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | mecab | 0.996-1.module+el8.0.0+5253+1dce7bb2.9 | ELSA-2021-3590 |
| Oracle Linux 8 | mecab-ipadic +1 | 2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | ELSA-2021-3590 |
| Oracle Linux 8 | mysql +6 | 8.0.26-1.module+el8.4.0+20311+30d12931 | ELSA-2021-3590 |
Advisories 6
- ALSA-2021:3590 Moderate: mysql:8.0 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:3811 Red Hat Security Advisory: rh-mysql80-mysql security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:3590 Red Hat Security Advisory: mysql:8.0 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-5022-1 mysql-5.7, mysql-8.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- RLSA-2021:3590 Moderate: mysql:8.0 security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- ELSA-2021-3590 Moderate: mysql:8.0 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Sep 23, 2021