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[ CVE-2026-101798 · Published 20 Oct 2026 ]

Vulnerability in Oracle Corporation MySQL Server

CVSS 4.9 EPSS <1%2 agency advisoriesNo fix listed yet

[ Description ]Official description

Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

  • CERT-FRCERTFR-2026-AVI-1351

    Multiple vulnerabilities in Oracle MySQL Translated from French

    Multiple vulnerabilities have been discovered in Oracle MySQL. Some of them allow an attacker to cause remote arbitrary code execution, remote denial of service and a breach of data confidentiality.

    CVE-2026-101721CVE-2026-101632CVE-2026-101629+157 more CVEs
  • BSI CERT-BundWID-SEC-2026-4081

    Oracle MySQL: Multiple vulnerabilities Translated from German

    Risk highCVE-2026-101773CVE-2026-101625CVE-2026-101806+93 more CVEs

[ References ]References