Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Components Services). Supported versions that are affected are MySQL Server: 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 9.7.0-9.7.3 and 26.7.0-26.7.1. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).

A flaw was found in the MySQL Server Components Services. A high-privileged remote attacker with network access can exploit this vulnerability under specific conditions to cause a Denial of Service (DoS). Successful exploitation allows an attacker to cause the server to hang or crash repeatedly, disrupting availability.

This vulnerability is rated with a Moderate severity impact because triggering the denial of service requires an attacker to possess elevated administrative privileges and successfully navigate high attack complexity. Red Hat Enterprise Linux is not affected by this flaw, as the vulnerable Server Components Services architecture was introduced in later upstream releases that are not present in supported enterprise platforms. The risk is further constrained because the issue only impacts service availability, leaving data confidentiality and integrity intact. Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Red Hat Enterprise Linux 10 Not affected mysql8.4 Red Hat Enterprise Linux 6 Not affected mysql Red Hat Enterprise Linux 9 Not affected mysql Red Hat Hardened Images Not affected mariadb10.11 Red Hat Hardened Images Not affected mariadb11.8 https://www.cve.org/CVERecord?id=CVE-2026-101752 https://nvd.nist.gov/vuln/detail/CVE-2026-101752 https://www.oracle.com/security-alerts/cpuoct2026.html