CVE-2026-21936
Last modified
CVE-2026-21936 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.0-8.0.44, 8.4.0-8.4.7 and 9.0.0-9.5.0. 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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oracle | Mysql Cluster | >= 7.6.0, <= 7.6.36 |
| Oracle | Mysql Cluster | >= 8.0.0, <= 8.0.44 |
| Oracle | Mysql Cluster | >= 8.4.0, <= 8.4.7 |
| Oracle | Mysql Cluster | >= 9.0.0, <= 9.5.0 |
| Oracle | Mysql Server | >= 8.0.0, <= 8.0.44 |
| Oracle | Mysql Server | >= 8.4.0, <= 8.4.7 |
| Oracle | Mysql Server | >= 9.0.0, <= 9.5.0 |
References
- https://www.oracle.com/security-alerts/cpujan2026.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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