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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": "2026-04-22T08:23:07.488805+00:00", "value": {"mitigation_remediation": ["Upgrade Oracle MySQL Server to the latest release that removes the InnoDB crash vulnerability (8.0.46 or newer, 8.4.9 or newer, or 9.6.1 or newer).", "If an immediate upgrade is not possible, restrict network access to the database server to trusted hosts only and monitor for abnormal crash patterns.", "Apply general database hardening, such as disabling unused protocols or enforcing strict firewall rules, to reduce the attack surface until a patch can be deployed."], "summary": {"action": "Apply Patches", "impact": "Denial of Service"}, "threat_synthesis": {"affected_systems": "Oracle Corporation 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 allows a high\u2011privileged attacker who can reach the database over the network to force the server to crash. An attacker can trigger a repeatable crash that results in a full denial of service to all users of the affected database. The vulnerability does not compromise confidentiality or integrity; its impact is confined to availability.", "risk_and_exploitability": "The CVSS 3.1 base score is 4.9, indicating moderate severity. Exploitability requires high privileges and network connectivity, but no exploit probability is listed in EPSS and the vulnerability is not yet present in the CISA KEV catalog. The attacker can remotely send malicious input to the MySQL server that triggers an InnoDB crash, leading to a complete denial of service."}}}}, "created": "2026-04-22T02:15:05.237283+00:00", "title": "InnoDB Storage Engine Crash Causes Availability Denial of Service in Oracle MySQL", "updated": "2026-04-22T08:30:12.488877+00:00", "vendors": ["oracle", "oracle$PRODUCT$mysql_server"], "weaknesses": ["CWE-400", "CWE-665"]}