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Vulnerability · Published Jun 16, 2026 · Assigned by oracle

CVE-2026-46862

High 7.5

In plain English

A high-severity uncontrolled resource consumption in MySQL Router from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 59.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 8.4.0-8.4.9 and 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via TLS to compromise MySQL Router. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Router. 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).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:25.10mariadbno fix listedUBUNTU-CVE-2026-46862
Ubuntu:22.04:LTSmysql-8.08.0.46-0ubuntu0.22.04.3USN-8457-1
Ubuntu:22.04:LTSmysql-8.08.0.46-0ubuntu0.22.04.3UBUNTU-CVE-2026-46862
Ubuntu:24.04:LTSmysql-8.08.0.46-0ubuntu0.24.04.3UBUNTU-CVE-2026-46862
Ubuntu:24.04:LTSmysql-8.08.0.46-0ubuntu0.24.04.3USN-8457-1
Ubuntu:25.10mysql-8.48.4.10-0ubuntu0.25.10.1UBUNTU-CVE-2026-46862
Ubuntu:25.10mysql-8.48.4.10-0ubuntu0.25.10.1USN-8457-1
Ubuntu:26.04:LTSmysql-8.48.4.10-0ubuntu0.26.04.1USN-8457-1
Ubuntu:26.04:LTSmysql-8.48.4.10-0ubuntu0.26.04.1UBUNTU-CVE-2026-46862

Affected products (as reported)

VendorProductVersions
Oracle Corporation MySQL Router 8.4.0 – through 8.4.99.0.0 – through 9.7.0

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References