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{"bugzilla": {"description": "mysql: Pluggable Auth unspecified vulnerability (CPU Jan 2026)", "id": "2431429", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2431429"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "details": ["Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Pluggable Auth). Supported versions that are affected are 9.0.0-9.5.0. Easily exploitable vulnerability allows high 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 partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L)."], "name": "CVE-2026-21965", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "mysql8.4", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "mysql:8.0/mysql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "mysql:8.4/mysql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "mysql:8.4/mysql", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-01-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-21965\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-21965\nhttps://www.oracle.com/security-alerts/cpujan2026.html#AppendixMSQL"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Oracle MySQL Critical Patch Update.", "threat_severity": "Low"}

{"analysis": {"en": {"generated_at": "2026-04-18T19:54:56.308653+00:00", "value": {"mitigation_remediation": ["Apply the latest Oracle patch or upgrade MySQL Server to a version newer than 9.5.0", "Restrict inbound network traffic to the MySQL Server, limiting the allowed protocols and enforcing firewall rules to block unauthorized connections", "Disable or remove authentication plugins that are not required for your environment to reduce the potential attack surface"], "summary": {"action": "Patch", "impact": "Partial Denial of Service"}, "threat_synthesis": {"affected_systems": "Oracle Corporation\u2019s MySQL Server versions 9.0.0 through 9.5.0 are vulnerable.", "description_and_impact": "The flaw is located in MySQL Server\u2019s Pluggable Authentication component. When a high\u2011privileged attacker with network access engages the server through its multiple supported protocols, the defect can be triggered and cause resource exhaustion, resulting in a partial denial of service. No data loss, confidentiality breach or integrity compromise is described in the statement.", "risk_and_exploitability": "The CVSS 3.1 base score of 2.7 shows a low\u2011to\u2011moderate impact limited to availability. The EPSS score of under 1% indicates the exploitation probability in the wild is very low. The vulnerability is not listed in the CISA KEV catalogue. The attack vector, inferred from the description, requires a high privileged attacker with network access via multiple protocols to trigger the denial of service event."}}}}, "created": "2026-04-18T20:00:09.298888+00:00", "updated": "2026-04-18T20:00:09.298899+00:00", "vendors": [], "weaknesses": ["CWE-770"]}