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{"bugzilla": {"description": "mysql: Optimizer unspecified vulnerability (CPU Apr 2026)", "id": "2460315", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460315"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["Oracle CPU describes the issue as following: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). 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 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 hang or frequently repeatable crash (complete DOS) of MySQL Server."], "name": "CVE-2026-22005", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Affected", "package_name": "mysql:8.0/mysql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "mysql:8.4/mysql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "mysql", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "mysql:8.4/mysql", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-22005\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-22005\nhttps://www.oracle.com/security-alerts/cpuapr2026.html\nhttps://www.oracle.com/security-alerts/cpuapr2026.html#AppendixMSQL"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Oracle MySQL Critical Patch Update.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.0.0,8.0.45]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[8.4.0,8.4.8]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[9.0.0,9.6.0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MySQL Server", "source": "cna", "vendor": "Oracle Corporation"}, "product": "mysql_server", "vendor": "oracle"}], "analysis": {"en": {"generated_at": "2026-04-22T07:14:25.328944+00:00", "value": {"mitigation_remediation": ["Upgrade Oracle MySQL Server to any release newer than 8.0.45, 8.4.8, or 9.6.0 to apply the vendor fix.", "Apply any additional Oracle security updates that address optimizer behavior for versions within or above the affected ranges.", "Restrict network access to MySQL Server to trusted hosts and disable unnecessary protocols to limit exposure to potential attackers.", "Monitor MySQL Server logs for crash events and apply additional isolation measures if repeated hangs occur."], "summary": {"action": "Patch", "impact": "Denial of Service via MySQL Server crash"}, "threat_synthesis": {"affected_systems": "Oracle MySQL Server versions 8.0.0 through 8.0.45, 8.4.0 through 8.4.8, and 9.0.0 through 9.6.0 are affected. These versions include all releases within those ranges for the MySQL Server product from Oracle.", "description_and_impact": "The vulnerability is located in the Optimizer component of Oracle MySQL Server and permits a high privileged attacker with network access to cause the server to hang or repeatedly crash. The effect is a complete denial of service, impacting availability only.", "risk_and_exploitability": "The CVSS v3.1 Base Score is 4.9, indicating moderate severity with a purely availability impact. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. The likely attack vector is network-based via multiple protocols; an attacker must possess high privileges to trigger the crash. The ability to cause a full service halt raises the risk for systems exposed to potentially insecure networks, underscoring the importance of timely remediation."}}}}, "created": "2026-04-22T02:45:05.725430+00:00", "title": "MySQL Server Optimizer Crash Allowing Denial of Service", "updated": "2026-04-22T07:15:11.677224+00:00", "vendors": ["oracle", "oracle$PRODUCT$mysql_server"], "weaknesses": ["CWE-400", "CWE-770"]}