CVE-2026-34318

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. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Shell. While the vulnerability is in MySQL Shell, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Shell accessible data. CVSS 3.1 Base Score 5.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N).

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://www.oracle.com/security-alerts/cpuapr2026.html	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oracle:mysql::::::::
	cpe:2.3:a:oracle:mysql::::::::
	cpe:2.3:a:oracle:mysql::::::::

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad en el producto MySQL Shell de Oracle MySQL (componente: Shell: Core Client). Las versiones soportadas que están afectadas son 8.0.0-8.0.45, 8.4.0-8.4.8 y 9.0.0-9.6.0. Vulnerabilidad difícil de explotar permite a un atacante con altos privilegios con acceso a la red a través de múltiples protocolos comprometer MySQL Shell. Aunque la vulnerabilidad está en MySQL Shell, los ataques pueden tener un impacto significativo en productos adicionales (cambio de alcance). Los ataques exitosos de esta vulnerabilidad pueden resultar en acceso no autorizado a datos críticos o acceso completo a todos los datos accesibles por MySQL Shell. Puntuación Base CVSS 3.1 de 5.8 (impactos en la confidencialidad). Vector CVSS: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N).

Information

Published : 2026-04-21 21:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-34318

Mitre link : CVE-2026-34318

CVE.ORG link : CVE-2026-34318

JSON object : View

Products Affected

oracle

mysql

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

{"id": "CVE-2026-34318", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34318", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-22T13:11:06.943015Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert_us@oracle.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.3}]}, "affected": [{"source": "secalert_us@oracle.com", "affectedData": [{"vendor": "Oracle Corporation", "product": "MySQL Shell", "versions": [{"status": "affected", "version": "8.0.0", "versionType": "custom", "lessThanOrEqual": "8.0.45"}, {"status": "affected", "version": "8.4.0", "versionType": "custom", "lessThanOrEqual": "8.4.8"}, {"status": "affected", "version": "9.0.0", "versionType": "custom", "lessThanOrEqual": "9.6.0"}]}]}], "published": "2026-04-21T21:16:37.327", "references": [{"url": "https://www.oracle.com/security-alerts/cpuapr2026.html", "tags": ["Vendor Advisory"], "source": "secalert_us@oracle.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-200"}]}], "descriptions": [{"lang": "en", "value": "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. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Shell. While the vulnerability is in MySQL Shell, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Shell accessible data. CVSS 3.1 Base Score 5.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N)."}, {"lang": "es", "value": "Vulnerabilidad en el producto MySQL Shell de Oracle MySQL (componente: Shell: Core Client). Las versiones soportadas que est\u00e1n afectadas son 8.0.0-8.0.45, 8.4.0-8.4.8 y 9.0.0-9.6.0. Vulnerabilidad dif\u00edcil de explotar permite a un atacante con altos privilegios con acceso a la red a trav\u00e9s de m\u00faltiples protocolos comprometer MySQL Shell. Aunque la vulnerabilidad est\u00e1 en MySQL Shell, los ataques pueden tener un impacto significativo en productos adicionales (cambio de alcance). Los ataques exitosos de esta vulnerabilidad pueden resultar en acceso no autorizado a datos cr\u00edticos o acceso completo a todos los datos accesibles por MySQL Shell. Puntuaci\u00f3n Base CVSS 3.1 de 5.8 (impactos en la confidencialidad). Vector CVSS: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N)."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E9A0C181-31F9-4D0F-8286-107145BBE875", "versionEndIncluding": "8.0.45", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AF49A82F-E371-4647-B32F-E67DD8FC8722", "versionEndIncluding": "8.4.8", "versionStartIncluding": "8.4.0"}, {"criteria": "cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7CCB362B-6A11-4B73-8176-C8C9FC19386A", "versionEndIncluding": "9.6.0", "versionStartIncluding": "9.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "secalert_us@oracle.com"}