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{"bugzilla": {"description": "mysql: InnoDB unspecified vulnerability (CPU Apr 2026)", "id": "2460344", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460344"}, "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: InnoDB). 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-2026-34304", "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-2026-34304\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-34304\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": "2026-04-29T01:55:07.366258+00:00", "value": {"mitigation_remediation": ["Apply the latest Oracle MySQL Server patch available after the 2026\u2011April security advisory, which removes the InnoDB crash vulnerability.", "Limit network access to the MySQL server by configuring firewall rules to allow connections only from trusted hosts or IP addresses.", "Disable unused network protocols and enforce strict firewall rules to reduce the attack surface until a patch is applied.", "Monitor MySQL server logs and system metrics for abnormal hang or crash patterns, and alert administrators when repeated failures occur."], "summary": {"action": "Apply Patches", "impact": "Denial of Service"}, "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 impacted.", "description_and_impact": "Oracle MySQL Server contains a flaw in its InnoDB storage engine that lets a high\u2011privileged attacker, who can reach the database system over network protocols, force the server to hang or crash repeatedly. This results in a complete denial of service for all users of the affected database, without impacting confidentiality or integrity.", "risk_and_exploitability": "The CVSS 3.1 base score of 4.9 indicates moderate severity for an availability impact. Exploitability requires high privileges and network connectivity. The EPSS score of less than 1% indicates a very low probability of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. An attacker that succeeds can trigger a repeatable crash of the MySQL server, causing a full denial of service to all connected clients."}}}}, "created": "2026-04-22T02:15:05.237283+00:00", "updated": "2026-04-29T02:00:27.261377+00:00", "vendors": ["oracle", "oracle$PRODUCT$mysql_server"]}