CVE-2026-46863
libmysqlclient21: Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling)
CVE-2026-46863 is fixed in 15 products on 1 platform, first by libmysqlclient24 8.4.10-0ubuntu0.26.04.1, released June 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0047
40th percentile
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libmysqlclient21 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | libmysqlclient21 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| libmysqlclient21 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | libmysqlclient21 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| libmysqlclient21 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | libmysqlclient21 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| libmysqlclient24 · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | libmysqlclient24 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| libmysqlclient24 · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | libmysqlclient24 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-client · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-client 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-client · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-client 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-client · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-client 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-client · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-client 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-client · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-client 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-client-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-client-8.0 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-client-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-client-8.0 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-client-8.0 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-client-8.0 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-client-core · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-client-core 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-client-core · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-client-core 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-client-core-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-client-core-8.0 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-client-core-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-client-core-8.0 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-client-core-8.0 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-client-core-8.0 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-router · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-router 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-router · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-router 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-router · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-router 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-router · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-router 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-router · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-router 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-server · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-server 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-server · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-server 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-server · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-server 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-server · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-server 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-server · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-server 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-server-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-server-8.0 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-server-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-server-8.0 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-server-8.0 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-server-8.0 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-server-core · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-server-core 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-server-core · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-server-core 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-server-core-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-server-core-8.0 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-server-core-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-server-core-8.0 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-server-core-8.0 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-server-core-8.0 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-source · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-source 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-source · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-source 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-source-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-source-8.0 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-source-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-source-8.0 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-source-8.0 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-source-8.0 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-testsuite · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-testsuite 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-testsuite · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-testsuite 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-testsuite · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-testsuite 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
| mysql-testsuite · Ubuntu 25.10 (questing) | 8.4.10-0ubuntu0.25.10.1 | mysql-testsuite 8.4.10-0ubuntu0.25.10.1 | Jun 24, 2026 |
| mysql-testsuite · Ubuntu 26.04.1 LTS (resolute) | 8.4.10-0ubuntu0.26.04.1 | mysql-testsuite 8.4.10-0ubuntu0.26.04.1 | Jun 18, 2026 |
| mysql-testsuite-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.46-0ubuntu0.20.04.1+esm3 | mysql-testsuite-8.0 8.0.46-0ubuntu0.20.04.1+esm3 | Jun 25, 2026 |
| mysql-testsuite-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.46-0ubuntu0.22.04.3 | mysql-testsuite-8.0 8.0.46-0ubuntu0.22.04.3 | Jun 24, 2026 |
| mysql-testsuite-8.0 · Ubuntu 24.04.5 LTS (noble) | 8.0.46-0ubuntu0.24.04.3 | mysql-testsuite-8.0 8.0.46-0ubuntu0.24.04.3 | Jun 24, 2026 |
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