{"id":"CVE-2026-101799","title":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication GCS)","summary":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication GCS).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Oracle Corporation","product":"MySQL Server","affected":["mysql_server 8.4.0-8.4.12","mysql_server 9.7.0-9.7.3","mysql_server 26.7.0-26.7.1","mysql_cluster 8.0.0-8.0.49","mysql_cluster 8.4.0-8.4.12","mysql_cluster 9.7.0-9.7.3","mysql_cluster 26.7.0-26.7.1"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T21:23:00.988Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101799","references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","label":"Oracle Advisory"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T22:23:33.918Z","slug":"CVE-2026-101799","body":"## Overview\n\nVulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Group Replication GCS).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and  26.7.0-26.7.1. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the MySQL Server, MySQL Cluster executes 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 6.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).\n\n## Affected\n\n- `mysql_server 8.4.0-8.4.12`\n- `mysql_server 9.7.0-9.7.3`\n- `mysql_server 26.7.0-26.7.1`\n- `mysql_cluster 8.0.0-8.0.49`\n- `mysql_cluster 8.4.0-8.4.12`\n- `mysql_cluster 9.7.0-9.7.3`\n- `mysql_cluster 26.7.0-26.7.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}