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Vulnerability · Published Apr 21, 2026 · Assigned by oracle

CVE-2026-34317

Medium 5.0

In plain English

A medium-severity security flaw in MySQL Shell 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 0.2% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)0.2%top 95.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where MySQL Shell executes to compromise MySQL Shell. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Shell. CVSS 3.1 Base Score 5.0 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:22.04:LTSmysql-8.08.0.46-0ubuntu0.22.04.2USN-8363-1
Ubuntu:22.04:LTSmysql-8.08.0.46-0ubuntu0.22.04.2UBUNTU-CVE-2026-34317
Ubuntu:24.04:LTSmysql-8.08.0.46-0ubuntu0.24.04.2UBUNTU-CVE-2026-34317
Ubuntu:24.04:LTSmysql-8.08.0.46-0ubuntu0.24.04.2USN-8363-1
Ubuntu:25.10mysql-8.48.4.9-0ubuntu0.25.10.1USN-8363-1
Ubuntu:25.10mysql-8.48.4.9-0ubuntu0.25.10.1UBUNTU-CVE-2026-34317
Ubuntu:26.04:LTSmysql-8.48.4.9-0ubuntu0.26.04.1USN-8363-1
Ubuntu:26.04:LTSmysql-8.48.4.9-0ubuntu0.26.04.1UBUNTU-CVE-2026-34317

Affected products (as reported)

VendorProductVersions
Oracle Corporation MySQL Shell 8.0.0 – through 8.0.458.4.0 – through 8.4.89.0.0 – through 9.6.0

Weakness: CWE-404 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

References