Ubuntu USN · USN-8457-2

MySQL vulnerabilities

Published: Wed, 24 Jun 2026 06:38

CVE-2026-46862CVE-2026-46863

Summary

Several security issues were fixed in MySQL.

Details

USN-8457-1 fixed several vulnerabilities in MySQL. This update provides the corresponding fixes for MySQL on Ubuntu 20.04 LTS Original advisory details: It was discovered that MySQL Router incorrectly handled repeated TLS protocol upgrade requests. An unauthenticated remote attacker could possibly use this issue to cause MySQL Router to crash, resulting in a denial of service. (CVE-2026-46862) It was discovered that MySQL Server incorrectly handled connection authentication. An unauthenticated remote attacker could possibly use this issue to cause MySQL to crash, resulting in a denial of service. (CVE-2026-46863)

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu focal

mysql-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libmysqlclient-dev→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libmysqlclient-dev
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
libmysqlclient21→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y libmysqlclient21
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-client→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-client
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-client-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-client-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-client-core-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-client-core-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-router→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-router
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-server→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-server
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-server-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-server-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-server-core-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-server-core-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-source-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-source-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-testsuite→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-testsuite
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
mysql-testsuite-8.0→8.0.46-0ubuntu0.20.04.1+esm3apt_upgrade
Standard apt upgrade. Install 8.0.46-0ubuntu0.20.04.1+esm3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y mysql-testsuite-8.0
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Are YOU affected by USN-8457-2?

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