CVE-2026-22001: Infoleak
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Information Schema). 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 read access to a subset of MySQL Server accessible data. CVSS 3.1 Base Score 2.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N).
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Revoke or limit SELECT and other access to INFORMATION_SCHEMA for non-administrative users. Ensure only high-trust administrative accounts retain privileges to query INFORMATION_SCHEMA (use GRANT/REVOKE to enforce least privilege).
MySQL Server (Information Schema) INFORMATION_SCHEMA access = restricted to administrative roles only - Compensating control
Restrict network access to MySQL servers at the network perimeter and host firewall/ACLs: allow MySQL-related protocols/ports only from trusted IP ranges, internal management networks, or via VPN. Block access from untrusted networks and the public internet.
- Compensating control
Limit remote administrative access to MySQL to dedicated management hosts or jump servers; require MFA and use bastion/VPN access for administrative connections to reduce exposure via multiple protocols.
- Operational
Enable and review MySQL audit/logging for INFORMATION_SCHEMA access, investigate recent queries by high-privileged accounts, and rotate credentials for high-privileged accounts if unauthorized access is suspected.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-22001?
CVE-2026-22001 has been classified as an easily exploitable high severity vulnerability.
How do I fix CVE-2026-22001?
To remediate CVE-2026-22001, it is recommended to upgrade your MySQL Server to a version beyond 8.0.45, 8.4.8, or 9.6.0.
Who is affected by CVE-2026-22001?
CVE-2026-22001 affects Oracle 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.
What components are involved in CVE-2026-22001?
CVE-2026-22001 specifically involves the Server: Information Schema component of the MySQL Server.
Can CVE-2026-22001 be exploited remotely?
Yes, CVE-2026-22001 can be exploited remotely by a high privileged attacker with network access.