Oracle MySQL Server Optimizer Denial of Service Vulnerability (CNVD-2026-18578)

Oracle MySQL Server is an open source relational database management system for storing, managing and retrieving data. A denial of service vulnerability exists in Oracle MySQL Server. The vulnerability stems from a failure of the Server: Optimizer component to properly handle a specific request a...

EUVD-2026-24307

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. 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 MyS...

CVE-2026-35240

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. 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 MyS...

CVE-2026-34267

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. Supported versions that are affected are 8.0.0-8.0.45. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks...

CVE-2026-21998

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. 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 MyS...

CVE-2026-34278

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. Supported versions that are affected are 8.0.0-8.0.45. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks...

PT-2026-34127

Name of the Vulnerable Software and Affected Versions Oracle MySQL Server versions 8.0.0 through 8.0.45 Oracle MySQL Server versions 8.4.0 through 8.4.8 Oracle MySQL Server versions 9.0.0 through 9.6.0 Description An issue exists in the Server: Optimizer component of MySQL Server. A low privilege...

PT-2026-34096

Vulnerability in the MySQL Server product of Oracle MySQL component: Server: Optimizer. Supported versions that are affected are 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks o...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the Optimizer component. An attacker can cause the server to hang or crash repeatedly by sending crafted requests over the network while authenticated with high privileges...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the Optimizer component. An attacker can cause the application to hang or crash by sending specially crafted requests over the network while authenticated with high privileges...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the Optimizer component. An attacker can cause the server to hang or crash repeatedly by sending specially crafted requests over the network. Remediation Upgrade libmysqlclient to...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the Optimizer component. An attacker can cause the server to hang or crash repeatedly by sending specially crafted requests over the network. Remediation Upgrade libmysqlclient to...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the Optimizer component. An attacker can cause the server to hang or crash repeatedly by sending crafted requests over the network. Remediation Upgrade libmysqlclient to version...

PT-2026-34091

Name of the Vulnerable Software and Affected Versions MySQL Server versions 8.0.0 through 8.0.45 Description An issue exists in the Server: Optimizer component of Oracle MySQL. A high-privileged attacker with network access via multiple protocols can exploit this flaw to cause a hang or frequentl...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the Optimizer. Remediation Upgrade libmysqlclient to version 8.1.0 or higher. References - Oracle Security Advisory - Red Hat Bugzilla Bug...

AlmaLinux 8 : mysql:8.4 (ALSA-2026:6391)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:6391 advisory. mysql: Optimizer unspecified vulnerability CPU Jan 2026 CVE-2026-21941 mysql: Optimizer unspecified vulnerability CPU Jan 2026 CVE-2026-21948 mysql: InnoD...

AlmaLinux 8 : mariadb:10.11 (ALSA-2026:6435)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:6435 advisory. mysql: High Privilege Denial of Service Vulnerability in MySQL Server CVE-2025-21490 mariadb: MariaDB Server Crash Due to Empty Backtrace Log CVE-2023-529...

MiracleLinux 8 : mariadb:10.11 (AXSA:2026-413:01)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-413:01 advisory. mysql: High Privilege Denial of Service Vulnerability in MySQL Server CVE-2025-21490 mariadb: MariaDB Server Crash Due to Empty Backtrace Log...

mysql:8.4 security update

An update is available for mecab-ipadic, module.mecab-ipadic, module.mysql, module.mecab, mysql, mecab. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list MySQL is ...

RLSA-2026:6391 Moderate: mysql:8.4 security update

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon mysqld and many client programs and libraries. Security Fixes: mysql: Optimizer unspecified vulnerability CPU Jan 2026 CVE-2026-21941 mysql: Optimizer unspecified vulnerability CPU Jan 2026...