CVE-2026-34271
Quick assessment
Affected
Oracle Corporation MySQL Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Oracle MySQL Server是美国甲骨文（Oracle）公司的一款关系型数据库。 Oracle MySQL Server存在安全漏洞，该漏洞源于Server: Group Replication Plugin组件问题，可能导致权限低的攻击者通过网络访问，造成服务挂起或频繁崩溃。以下版本受到影响：8.0.0版本至8.0.45版本、8.4.0版本至8.4.8版本和9.0.0版本至9.6.0版本。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-34271
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Group Replication Plugin). 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 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Oracle MySQL Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oracle MySQL Server是美国甲骨文（Oracle）公司的一款关系型数据库。 Oracle MySQL Server存在安全漏洞，该漏洞源于Server: Group Replication Plugin组件问题，可能导致权限低的攻击者通过网络访问，造成服务挂起或频繁崩溃。以下版本受到影响：8.0.0版本至8.0.45版本、8.4.0版本至8.4.8版本和9.0.0版本至9.6.0版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Oracle Corporation | MySQL Server | 8.0.0 ~ 8.0.45 | - |
|
II. Public POCs for CVE-2026-34271
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-34271 (1)
-
https://www.oracle.com/security-alerts/cpuapr2026.html vendor-advisory
Same Patch Batch · Oracle Corporation · 2026-04-21 · 102 CVEs total
| CVE-2026-34275 | 9.8 CRITICAL | Oracle Advanced Inbound Telephony 安全漏洞 |
| CVE-2026-34286 | 9.1 CRITICAL | Oracle Identity Manager Connector 安全漏洞 |
| CVE-2026-34287 | 9.1 CRITICAL | Oracle Identity Manager Connector 安全漏洞 |
| CVE-2026-34285 | 9.1 CRITICAL | Oracle Identity Manager Connector 安全漏洞 |
| CVE-2026-34279 | 9.1 CRITICAL | Oracle Enterprise Manager Base Platform 安全漏洞 |
| CVE-2026-34291 | 8.7 HIGH | Oracle HTTP Server 安全漏洞 |
| CVE-2026-21997 | 8.5 HIGH | Oracle Life Sciences Empirica Signal 安全漏洞 |
| CVE-2026-34309 | 8.1 HIGH | Oracle PeopleSoft Enterprise PeopleTools 安全漏洞 |
| CVE-2026-35243 | 7.8 HIGH | Oracle Application Development Framework 安全漏洞 |
| CVE-2026-22011 | 7.6 HIGH | Oracle Applications DBA 安全漏洞 |
| CVE-2026-34297 | 7.5 HIGH | Oracle HCM Common Architecture 安全漏洞 |
| CVE-2026-34305 | 7.5 HIGH | Oracle WebLogic Server 安全漏洞 |
| CVE-2026-35231 | 7.5 HIGH | Oracle Financial Services Transaction Filtering 安全漏洞 |
| CVE-2026-35242 | 7.5 HIGH | Oracle VM VirtualBox 安全漏洞 |
| CVE-2026-34282 | 7.5 HIGH | Oracle多款产品 安全漏洞 |
| CVE-2026-34310 | 7.5 HIGH | Oracle Financial Services Analytical Applications Infrastructure 安全漏洞 |
| CVE-2026-35245 | 7.5 HIGH | Oracle VM VirtualBox 安全漏洞 |
| CVE-2026-35246 | 7.5 HIGH | Oracle VM VirtualBox 安全漏洞 |
| CVE-2026-35229 | 7.5 HIGH | Oracle Database Server 安全漏洞 |
| CVE-2026-34290 | 7.5 HIGH | Oracle Identity Manager Connector 安全漏洞 |
Showing top 20 of 102 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-34271
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