CVE-2026-34304

Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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 high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

CVSS v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oracle:mysql_server::::::::
	cpe:2.3:a:oracle:mysql_server::::::::
	cpe:2.3:a:oracle:mysql_server::::::::

History

23 Apr 2026, 15:10

Type	Values Removed	Values Added
References	~~() https://www.oracle.com/security-alerts/cpuapr2026.html -~~	() https://www.oracle.com/security-alerts/cpuapr2026.html - Vendor Advisory
First Time		Oracle mysql Server Oracle
CPE		cpe:2.3:a:oracle:mysql_server::::::::

22 Apr 2026, 14:16

Type	Values Removed	Values Added
CWE		CWE-400

21 Apr 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-21 21:16

Updated : 2026-04-23 15:10

NVD link : CVE-2026-34304

Mitre link : CVE-2026-34304

CVE.ORG link : CVE-2026-34304

JSON object : View

Products Affected

oracle

mysql_server

CWE

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2026-34304", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "secalert_us@oracle.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.2}]}, "published": "2026-04-21T21:16:35.690", "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-400"}]}], "descriptions": [{"lang": "en", "value": "Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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 high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)."}], "lastModified": "2026-04-23T15:10:07.963", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "523E15F1-A21A-4D5D-82D5-2EB73B972AD9", "versionEndIncluding": "8.0.45", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "427409D3-F331-4EA0-BEB7-F95594E81B2B", "versionEndIncluding": "8.4.8", "versionStartIncluding": "8.4.0"}, {"criteria": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CFD5AEC-ACAB-4F9E-8668-87A0CBD186CB", "versionEndIncluding": "9.6.0", "versionStartIncluding": "9.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "secalert_us@oracle.com"}