CVE-2026-22004: Medium severity Oracle MySQL Server vulnerability
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. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Restrict network exposure of MySQL Server (InnoDB). Block access to MySQL network ports and management interfaces from untrusted networks using firewalls/ACLs or place the database hosts behind a VPN; allow connections only from trusted IPs and application servers. This mitigates the vulnerability because it requires network access.
- Operational
Identify any MySQL Server instances running the affected versions (8.0.0-8.0.45, 8.4.0-8.4.8, 9.0.0-9.6.0). Monitor Oracle MySQL security advisories and apply vendor-provided patches or updates as soon as fixes are released; schedule maintenance windows to update vulnerable instances and restart services as required.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-22004?
CVE-2026-22004 is classified as an easily exploitable vulnerability that could allow a high privileged attacker to compromise MySQL Server.
How do I fix CVE-2026-22004?
To fix CVE-2026-22004, upgrade MySQL Server to a version beyond the affected ranges, specifically above 8.0.45, 8.4.8, or 9.6.0.
Which versions of MySQL Server are affected by CVE-2026-22004?
CVE-2026-22004 affects MySQL Server versions 8.0.0 to 8.0.45, 8.4.0 to 8.4.8, and 9.0.0 to 9.6.0.
Can CVE-2026-22004 be remotely exploited?
Yes, CVE-2026-22004 can be exploited remotely by attackers with high privileges through multiple protocols.
What components of MySQL Server does CVE-2026-22004 affect?
CVE-2026-22004 specifically affects the InnoDB component of the MySQL Server product.