CVE-2026-22005: 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. in Oracle Corporation MySQL Server
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 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).
AI Analysis
Technical Summary
This vulnerability exists in the MySQL Server component 'Optimizer' and permits a high privileged attacker with network access to cause a hang or repeated crash of the MySQL Server, resulting in a denial of service condition. The CVSS 3.1 base score is 4.9, reflecting a medium severity with an attack vector of network, low attack complexity, and requiring high privileges. The vulnerability does not impact confidentiality or integrity. Oracle's April 2026 Critical Patch Update advisory lists this vulnerability among 481 security patches and provides patch availability documentation for affected MySQL Server versions.
Potential Impact
Successful exploitation results in denial of service by causing the MySQL Server to hang or crash repeatedly. There is no impact on data confidentiality or integrity. The attack requires high privileges and network access, limiting the scope to authorized users with elevated permissions. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the April 2026 Critical Patch Update. Users of affected MySQL Server versions (8.0.0-8.0.45, 8.4.0-8.4.8, 9.0.0-9.6.0) are strongly advised to apply the relevant patches promptly. The vendor advisory is the authoritative source for patch availability and installation instructions: https://www.oracle.com/security-alerts/cpuapr2026.html. No alternative mitigations or workarounds are specified in the advisory.
CVE-2026-22005: 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. in Oracle Corporation MySQL Server
Description
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 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).
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability exists in the MySQL Server component 'Optimizer' and permits a high privileged attacker with network access to cause a hang or repeated crash of the MySQL Server, resulting in a denial of service condition. The CVSS 3.1 base score is 4.9, reflecting a medium severity with an attack vector of network, low attack complexity, and requiring high privileges. The vulnerability does not impact confidentiality or integrity. Oracle's April 2026 Critical Patch Update advisory lists this vulnerability among 481 security patches and provides patch availability documentation for affected MySQL Server versions.
Potential Impact
Successful exploitation results in denial of service by causing the MySQL Server to hang or crash repeatedly. There is no impact on data confidentiality or integrity. The attack requires high privileges and network access, limiting the scope to authorized users with elevated permissions. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the April 2026 Critical Patch Update. Users of affected MySQL Server versions (8.0.0-8.0.45, 8.4.0-8.4.8, 9.0.0-9.6.0) are strongly advised to apply the relevant patches promptly. The vendor advisory is the authoritative source for patch availability and installation instructions: https://www.oracle.com/security-alerts/cpuapr2026.html. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-01-05T18:07:34.726Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cpuapr2026.html","vendor":"Oracle"}]
Threat ID: 69e7e59b19fe3cd2cdf9f61d
Added to database: 4/21/2026, 9:01:15 PM
Last enriched: 4/21/2026, 10:18:41 PM
Last updated: 4/22/2026, 6:06:23 AM
Views: 3
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