========================================================================== Ubuntu Security Notice USN-8457-1 June 22, 2026
mysql-8.0, mysql-8.4 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in MySQL. Software Description: - mysql-8.4: MySQL database - mysql-8.0: MySQL database 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) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS mysql-server 8.4.10-0ubuntu0.26.04.1 Ubuntu 25.10 mysql-server 8.4.10-0ubuntu0.25.10.1 Ubuntu 24.04 LTS mysql-server-8.0 8.0.46-0ubuntu0.24.04.3 Ubuntu 22.04 LTS mysql-server-8.0 8.0.46-0ubuntu0.22.04.3 This update may use a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8457-1 CVE-2026-46862, CVE-2026-46863 Package Information: https://launchpad.net/ubuntu/+source/mysql-8.4/8.4.10-0ubuntu0.26.04.1 https://launchpad.net/ubuntu/+source/mysql-8.4/8.4.10-0ubuntu0.25.10.1 https://launchpad.net/ubuntu/+source/mysql-8.0/8.0.46-0ubuntu0.24.04.3 https://launchpad.net/ubuntu/+source/mysql-8.0/8.0.46-0ubuntu0.22.04.3
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