Description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
Published: 2026-07-21
Score: 4.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A resource exhaustion flaw in the MySQL Group Replication Plugin allows an attacker who has high privileges and network access to trigger a persistent loop or hang that causes the MySQL Server or MySQL Cluster to crash repeatedly. The vulnerability can be exploited to deny services by exhausting server resources, impacting only availability without compromising data confidentiality or integrity.

Affected Systems

Oracle MySQL Server versions 8.4.0 through 8.4.10 and 9.7.0 through 9.7.1, as well as MySQL Cluster versions 8.0.0 to 8.0.47, 8.4.0 to 8.4.10, and 9.7.0 to 9.7.1 are affected.

Risk and Exploitability

The CVSS v3.1 base score of 4.4 indicates a moderate severity that focuses solely on availability. The EPSS probability of less than 1 % shows that exploitation is currently unlikely, and the vulnerability is not listed in CISA’s KEV catalog. Successful exploitation requires an attacker to have high privileges and network access to the MySQL instance over the supported protocols. If exploited, the attacker can force the server or cluster to hang or crash repeatedly, thereby interrupting service availability.

Generated by OpenCVE AI on August 4, 2026 at 04:48 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to a MySQL Server or MySQL Cluster version that includes the vendor’s fix for this vulnerability.
  • If the Group Replication Plugin is not required for your deployment, disable or remove it to eliminate the attack surface.
  • Restrict network traffic to the MySQL service by applying firewall rules or host‑based controls so that only trusted hosts can reach the database server or cluster.

Generated by OpenCVE AI on August 4, 2026 at 04:48 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 28 Jul 2026 23:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-739

Tue, 28 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Title MySQL Group Replication Denial of Service mysql: Group Replication Plugin unspecified vulnerability (CPU Jul 2026)
References
Metrics threat_severity

None

 threat_severity

Moderate

Sat, 25 Jul 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 24 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Title MySQL Group Replication Denial of Service
Weaknesses CWE-400
CWE-739

Tue, 21 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
Description Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are MySQL Server: 8.4.0-8.4.10, 9.7.0-9.7.1; MySQL Cluster: 8.0.0-8.0.47, 8.4.0-8.4.10 and 9.7.0-9.7.1. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
First Time appeared Oracle
Oracle mysql Cluster
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Cluster
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Subscriptions

Oracle Mysql Cluster Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-07-23T14:53:24.957Z

Reserved: 2026-07-08T15:51:40.519Z

Link: CVE-2026-60186

cve-icon Vulnrichment

Updated: 2026-07-23T14:53:20.773Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-21T00:00:00Z

Links: CVE-2026-60186 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-04T05:00:05Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption