CVE-2026-22017
Denial of Service in Oracle MySQL Server Optimizer Component
Publication date: 2026-04-21
Last updated on: 2026-04-23
Assigner: Oracle
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| oracle | mysql_server | From 8.0.0 (inc) to 8.0.45 (inc) |
| oracle | mysql_server | From 8.4.0 (inc) to 8.4.8 (inc) |
| oracle | mysql_server | From 9.0.0 (inc) to 9.6.0 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-400 | The product does not properly control the allocation and maintenance of a limited resource. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the MySQL Server product of Oracle MySQL, specifically in the Server Optimizer component. It affects supported versions 8.0.0 to 8.0.45, 8.4.0 to 8.4.8, and 9.0.0 to 9.6.0. The vulnerability is easily exploitable by a low privileged attacker who has network access through multiple protocols.
A successful attack can allow the attacker to cause the MySQL Server to hang or crash repeatedly, resulting in a complete denial of service (DoS).
How can this vulnerability impact me? :
The primary impact of this vulnerability is on the availability of the MySQL Server. An attacker with low privileges and network access can exploit this vulnerability to cause the server to hang or crash repeatedly.
This results in a complete denial of service (DoS), meaning legitimate users and applications will be unable to access the database services until the issue is resolved.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
This vulnerability allows a low privileged attacker to cause a denial of service (DoS) by crashing or hanging the MySQL Server, impacting availability.
However, there is no information provided about any impact on confidentiality or integrity of data.
Since common standards and regulations like GDPR and HIPAA emphasize the protection of data confidentiality, integrity, and availability, this vulnerability primarily affects the availability aspect.
Repeated denial of service could potentially disrupt services that rely on MySQL Server, which might indirectly affect compliance if availability requirements are part of the regulatory obligations.
No explicit information is provided about direct compliance impact in the context.