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).
History

Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 09:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via Group Replication Plugin Crash in Oracle MySQL Server
Weaknesses CWE-770

Wed, 22 Apr 2026 07:30:00 +0000

Type Values Removed Values Added
Title MySQL Server Group Replication Plugin Denial of Service via Low‑Privilege Network Attack
Weaknesses CWE-739

Wed, 22 Apr 2026 03:00:00 +0000

Type Values Removed Values Added
Title MySQL Server Group Replication Plugin Denial of Service via Low‑Privilege Network Attack
Weaknesses CWE-739

Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
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).
First Time appeared Oracle
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published: 2026-04-21T20:35:15.179Z

Updated: 2026-04-22T13:54:29.141Z

Reserved: 2026-03-26T19:48:45.674Z

Link: CVE-2026-34270

cve-icon Vulnrichment

Updated: 2026-04-22T13:54:22.362Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-04-21T21:16:30.717

Modified: 2026-04-22T21:24:26.997

Link: CVE-2026-34270

cve-icon Redhat

No data.