{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-46863: Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling)","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-46863","status":"final","version":"1","initial_release_date":"2026-06-16T19:27:35.870Z","current_release_date":"2026-06-16T19:27:35.870Z","revision_history":[{"date":"2026-06-16T19:27:35.870Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and  9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated 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 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-46863 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-46863"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-46863"},{"category":"external","summary":"Oracle Advisory","url":"https://www.oracle.com/security-alerts/cspujun2026.html"}]},"product_tree":{"branches":[{"category":"vendor","name":"Oracle Corporation","branches":[{"category":"product_name","name":"MySQL Server","branches":[{"category":"product_version","name":"8.4.0-8.4.9","product":{"name":"Oracle Corporation MySQL Server 8.4.0-8.4.9","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:oracle_corporation:mysql_server:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"9.0.0-9.7.0","product":{"name":"Oracle Corporation MySQL Server 9.0.0-9.7.0","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:oracle_corporation:mysql_server:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Oracle Corporation","branches":[{"category":"product_name","name":"MySQL Cluster","branches":[{"category":"product_version","name":"8.0.11-8.0.46","product":{"name":"Oracle Corporation MySQL Cluster 8.0.11-8.0.46","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:oracle_corporation:mysql_cluster:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"8.4.0-8.4.9","product":{"name":"Oracle Corporation MySQL Cluster 8.4.0-8.4.9","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:oracle_corporation:mysql_cluster:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"9.0.0-9.7.0","product":{"name":"Oracle Corporation MySQL Cluster 9.0.0-9.7.0","product_id":"CSAFPID-5","product_identification_helper":{"cpe":"cpe:2.3:a:oracle_corporation:mysql_cluster:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-46863","title":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling)","notes":[{"category":"description","text":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and  9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated 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 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5"]}]}]}