# CVE-2026-21941: mysql8.4: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)

CVE-2026-21941 is fixed in 37 products on 1 platform, first by RHSA-2026:4162, released January 20, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-21941
- Priority: Routine
- CVSS: 6.5 (moderate)
- EPSS: 0.0040
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 20, 2026

## Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).  Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and  9.0.0-9.5.0. 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).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libmysqlclient21 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [libmysqlclient21 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmysqlclient21-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | libmysqlclient21 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [libmysqlclient21 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libmysqlclient21-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | libmysqlclient21 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [libmysqlclient21 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libmysqlclient21-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | libmysqlclient24 Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [libmysqlclient24 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libmysqlclient24-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | libmysqlclient24 Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [libmysqlclient24 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libmysqlclient24-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mecab RHEL 8 | 0:0.996-2.module+el8.10.0+23550+bd321b9a | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mecab RHEL 9 | 0:0.996-3.module+el9.7.0+24088+36dcab8d.4 | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mecab almalinux 8 | 0.996-2.module_el8.10.0+4060+d4256e26 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mecab almalinux 9 | 0.996-3.module_el9.6.0+152+8cbce00c.4 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mecab ol 8 | 0:0.996-2.module+el8.10.0+90675+bf1d9af8 | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mecab ol 9 | 0:0.996-3.module+el9.7.0+90850+a687c04f.4 | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |
| Linux | mecab rocky 8 | 0:0.996-2.module+el8.10.0+1937+28fbbc83 | [RLSA-2026:6391](https://patchblox.com/security/data/fix/linux/rlsa-2026-6391.md) | Apr 2, 2026 |
| Linux | mecab rocky 9 | 0:0.996-3.module+el9.7.0+40027+0df0d4e0.4 | [RLSA-2026:5640](https://patchblox.com/security/data/fix/linux/rlsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mecab-devel RHEL 8 | 0:0.996-2.module+el8.10.0+23550+bd321b9a | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mecab-devel RHEL 9 | 0:0.996-3.module+el9.7.0+24088+36dcab8d.4 | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mecab-devel almalinux 8 | 0.996-2.module_el8.10.0+4060+d4256e26 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mecab-devel almalinux 9 | 0.996-3.module_el9.6.0+152+8cbce00c.4 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mecab-devel ol 8 | 0:0.996-2.module+el8.10.0+90675+bf1d9af8 | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mecab-devel ol 9 | 0:0.996-3.module+el9.7.0+90850+a687c04f.4 | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |
| Linux | mecab-ipadic RHEL 8 | 0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mecab-ipadic RHEL 9 | 0:2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mecab-ipadic almalinux 8 | 2.7.0.20070801-17.module_el8.10.0+4060+d4256e26 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mecab-ipadic almalinux 9 | 2.7.0.20070801-24.module_el9.6.0+152+8cbce00c | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mecab-ipadic ol 8 | 0:2.7.0.20070801-17.0.1.module+el8.10.0+90675+bf1d9af8 | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mecab-ipadic ol 9 | 0:2.7.0.20070801-24.0.1.module+el9.7.0+90850+a687c04f | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |
| Linux | mecab-ipadic rocky 8 | 0:2.7.0.20070801-17.module+el8.10.0+1937+28fbbc83 | [RLSA-2026:6391](https://patchblox.com/security/data/fix/linux/rlsa-2026-6391.md) | Apr 2, 2026 |
| Linux | mecab-ipadic rocky 9 | 0:2.7.0.20070801-24.module+el9.7.0+40027+0df0d4e0 | [RLSA-2026:5640](https://patchblox.com/security/data/fix/linux/rlsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mecab-ipadic-EUCJP RHEL 8 | 0:2.7.0.20070801-17.module+el8.10.0+23550+bd321b9a | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mecab-ipadic-EUCJP RHEL 9 | 0:2.7.0.20070801-24.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mecab-ipadic-EUCJP almalinux 8 | 2.7.0.20070801-17.module_el8.10.0+4060+d4256e26 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mecab-ipadic-EUCJP almalinux 9 | 2.7.0.20070801-24.module_el9.6.0+152+8cbce00c | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mecab-ipadic-EUCJP ol 8 | 0:2.7.0.20070801-17.0.1.module+el8.10.0+90675+bf1d9af8 | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mecab-ipadic-EUCJP ol 9 | 0:2.7.0.20070801-24.0.1.module+el9.7.0+90850+a687c04f | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |
| Linux | mysql RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql rocky 9 | 0:8.0.45-1.el9_7 | [RLSA-2026:4828](https://patchblox.com/security/data/fix/linux/rlsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-client Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-client 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-client Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-client 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-client-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-client Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-client 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-client-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-client Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-client 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-client-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-client Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-client 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-client-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-client-8.0 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-client-8.0 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-8.0-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-client-8.0 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-client-8.0 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-client-8.0-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-client-8.0 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-client-8.0 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-client-8.0-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-client-core Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-client-core 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-client-core-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-client-core Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-client-core 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-client-core-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-client-core-8.0 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-client-core-8.0 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-core-8.0-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-client-core-8.0 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-client-core-8.0 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-client-core-8.0-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-client-core-8.0 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-client-core-8.0 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-client-core-8.0-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-common RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-common RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-common almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-common almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-common ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql-common ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-devel RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-devel RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-devel almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-devel almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-devel ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql-devel ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-errmsg RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-errmsg RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-errmsg almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-errmsg almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-errmsg ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql-errmsg ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-libs RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-libs RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-libs almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-libs almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-libs ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql-libs ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-router Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-router 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-router-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-router Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-router 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-router-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-router Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-router 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-router-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-router Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-router 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-router-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-router Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-router 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-router-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-server RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-server RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-server Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-server 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-server Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-server 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-server-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-server Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-server 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-server-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-server Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-server 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-server-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-server Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-server 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-server-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-server almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-server almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-server ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql-server ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-server-8.0 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-server-8.0 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-8.0-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-server-8.0 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-server-8.0 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-server-8.0-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-server-8.0 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-server-8.0 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-server-8.0-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-server-core Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-server-core 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-server-core-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-server-core Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-server-core 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-server-core-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-server-core-8.0 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-server-core-8.0 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-core-8.0-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-server-core-8.0 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-server-core-8.0 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-server-core-8.0-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-server-core-8.0 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-server-core-8.0 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-server-core-8.0-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-source Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-source 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-source-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-source Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-source 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-source-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-source-8.0 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-source-8.0 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-source-8.0-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-source-8.0 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-source-8.0 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-source-8.0-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-source-8.0 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-source-8.0 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-source-8.0-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-test RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-test RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-test almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-test almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-test ol 8 | 0:8.0.45-1.module+el8.10.0+90852+2347412b | [ELSA-2026-5580](https://patchblox.com/security/data/fix/linux/elsa-2026-5580.md) | Mar 25, 2026 |
| Linux | mysql-test ol 9 | 0:8.0.45-1.el9_7 | [ELSA-2026-4828](https://patchblox.com/security/data/fix/linux/elsa-2026-4828.md) | Mar 18, 2026 |
| Linux | mysql-test-data RHEL 8 | 0:8.4.8-1.module+el8.10.0+24007+c07a67f2 | [RHSA-2026:6391](https://patchblox.com/security/data/fix/linux/rhsa-2026-6391.md) | Apr 15, 2026 |
| Linux | mysql-test-data RHEL 9 | 0:8.4.8-1.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | mysql-test-data almalinux 8 | 8.4.8-1.module_el8.10.0+4154+a69a9128 | [ALSA-2026:6391](https://patchblox.com/security/data/fix/linux/alsa-2026-6391.md) | Apr 1, 2026 |
| Linux | mysql-test-data almalinux 9 | 8.4.8-1.module_el9.7.0+219+aca48cd3 | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | mysql-test-data ol 8 | 0:8.4.8-1.module+el8.10.0+90860+a2709779 | [ELSA-2026-6391](https://patchblox.com/security/data/fix/linux/elsa-2026-6391.md) | Apr 2, 2026 |
| Linux | mysql-test-data ol 9 | 0:8.4.8-1.module+el9.7.0+90850+a687c04f | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |
| Linux | mysql-testsuite Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-testsuite 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-testsuite-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-testsuite Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-testsuite 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-testsuite-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-testsuite Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-testsuite 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-testsuite-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql-testsuite Ubuntu 25.10 (questing) | 8.4.8-0ubuntu0.25.10.1 | [mysql-testsuite 8.4.8-0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-mysql-testsuite-8.4.8-0ubuntu0.25.10.1.md) | Jan 20, 2026 |
| Linux | mysql-testsuite Ubuntu 26.04.1 LTS (resolute) | 8.4.8-0ubuntu1 | [mysql-testsuite 8.4.8-0ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-mysql-testsuite-8.4.8-0ubuntu1.md) | Jan 20, 2026 |
| Linux | mysql-testsuite-8.0 Ubuntu 20.04 LTS (focal) | 8.0.45-0ubuntu0.20.04.1+esm2 | [mysql-testsuite-8.0 8.0.45-0ubuntu0.20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-testsuite-8.0-8.0.45-0ubuntu0.20.04.1-esm2.md) | Jan 20, 2026 |
| Linux | mysql-testsuite-8.0 Ubuntu 22.04.1 LTS (jammy) | 8.0.45-0ubuntu0.22.04.1 | [mysql-testsuite-8.0 8.0.45-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mysql-testsuite-8.0-8.0.45-0ubuntu0.22.04.1.md) | Jan 20, 2026 |
| Linux | mysql-testsuite-8.0 Ubuntu 24.04.5 LTS (noble) | 8.0.45-0ubuntu0.24.04.1 | [mysql-testsuite-8.0 8.0.45-0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mysql-testsuite-8.0-8.0.45-0ubuntu0.24.04.1.md) | Jan 20, 2026 |
| Linux | mysql8.4 RHEL 10 | 8.4.8-1.el10_1 | [RHSA-2026:4162](https://patchblox.com/security/data/fix/linux/rhsa-2026-4162.md) | Jan 20, 2026 |
| Linux | mysql8.4 ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4 rocky 10 | 0:8.4.8-1.el10_1.rocky.0.1 | [RLSA-2026:4162](https://patchblox.com/security/data/fix/linux/rlsa-2026-4162.md) | May 21, 2026 |
| Linux | mysql8.4-common almalinux 10 | 8.4.8-1.el10_1 | [ALSA-2026:4162](https://patchblox.com/security/data/fix/linux/alsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-common ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-devel ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-errmsg almalinux 10 | 8.4.8-1.el10_1 | [ALSA-2026:4162](https://patchblox.com/security/data/fix/linux/alsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-errmsg ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-libs ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-server ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-test ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-test-data almalinux 10 | 8.4.8-1.el10_1 | [ALSA-2026:4162](https://patchblox.com/security/data/fix/linux/alsa-2026-4162.md) | Mar 10, 2026 |
| Linux | mysql8.4-test-data ol 10 | 0:8.4.8-1.el10_1 | [ELSA-2026-4162](https://patchblox.com/security/data/fix/linux/elsa-2026-4162.md) | Mar 10, 2026 |
| Linux | rapidjson rocky 9 | 0:1.1.0-19.module+el9.7.0+40027+0df0d4e0 | [RLSA-2026:5640](https://patchblox.com/security/data/fix/linux/rlsa-2026-5640.md) | Mar 24, 2026 |
| Linux | rapidjson-devel RHEL 9 | 0:1.1.0-19.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | rapidjson-devel almalinux 9 | 1.1.0-19.module_el9.6.0+152+8cbce00c | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | rapidjson-devel ol 9 | 0:1.1.0-19.module+el9.7.0+90850+a687c04f | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |
| Linux | rapidjson-doc RHEL 9 | 0:1.1.0-19.module+el9.7.0+24088+36dcab8d | [RHSA-2026:5640](https://patchblox.com/security/data/fix/linux/rhsa-2026-5640.md) | Apr 15, 2026 |
| Linux | rapidjson-doc almalinux 9 | 1.1.0-19.module_el9.6.0+152+8cbce00c | [ALSA-2026:5640](https://patchblox.com/security/data/fix/linux/alsa-2026-5640.md) | Mar 24, 2026 |
| Linux | rapidjson-doc ol 9 | 0:1.1.0-19.module+el9.7.0+90850+a687c04f | [ELSA-2026-5640](https://patchblox.com/security/data/fix/linux/elsa-2026-5640.md) | Mar 25, 2026 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.