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High USN-8457-1 2 CVEs

mysql-8.0, mysql-8.4 vulnerabilities

Published Jun 22, 2026 · Updated Jun 22, 2026

Summary

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)

Fixed packages 4

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS mysql-8.0 8.0.46-0ubuntu0.22.04.3
Ubuntu · 24.04 LTS 24.04:LTS mysql-8.0 8.0.46-0ubuntu0.24.04.3
Ubuntu · 25.10 mysql-8.4 8.4.10-0ubuntu0.25.10.1
Ubuntu · 26.04 LTS 26.04:LTS mysql-8.4 8.4.10-0ubuntu0.26.04.1

Vulnerabilities 2

References

  • report
    https://ubuntu.com/security/CVE-2026-46862
  • report
    https://ubuntu.com/security/CVE-2026-46863