Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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).
Published: 2026-04-21
Score: 4.9 Medium
EPSS: n/a
KEV: No
Impact: Denial of Service
Action: Update Server
AI Analysis

Impact

The vulnerability resides in the InnoDB component of Oracle MySQL Server. An attacker with high privileges who can reach the server over the network can exploit it to cause the server to hang or crash repeatedly, thereby disabling the database service. The weakness affects availability only, with no impact on confidentiality or integrity, as indicated by the CVSS vector (C:N/I:N/A:H).

Affected Systems

Oracle Corporation MySQL Server versions 8.0.0 through 8.0.45, 8.4.0 through 8.4.8, and 9.0.0 through 9.6.0 are impacted. Systems running these releases are at risk of experiencing frequent service interruptions if the flaw is exploited.

Risk and Exploitability

The CVSS base score of 4.9 signals a moderate severity exploit. EPSS is not reported, and the vulnerability is not listed in the CISA KEV catalog, suggesting limited known exploitation activity to date. Nonetheless, an attacker with network access can trigger the defect directly via standard MySQL protocols, and the requirement for high privileged access reduces the threat surface but does not eliminate it. The exploit path is straightforward: connect to the server, send malformed or specific InnoDB-related requests that trigger the crash, and cause a denial of service. Maintaining current patches and monitoring for abnormal CPU or memory spikes can mitigate the risk until a fix is applied.

Generated by OpenCVE AI on April 22, 2026 at 04:46 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update MySQL Server to the latest supported release that contains the fix for this InnoDB vulnerability.
  • Restrict network exposure by disabling unused MySQL protocols or enforcing firewall rules that limit access to trusted hosts.
  • Enable performance monitoring and automated restarts for MySQL services to quickly recover from recurring crashes.

Generated by OpenCVE AI on April 22, 2026 at 04:46 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 22 Apr 2026 05:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via InnoDB Vulnerability in Oracle MySQL Server
Weaknesses CWE-400

Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Description Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). 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).
First Time appeared Oracle
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Oracle Mysql Server
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-04-21T20:35:47.034Z

Reserved: 2026-04-01T20:03:40.833Z

Link: CVE-2026-35237

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-21T21:16:39.407

Modified: 2026-04-21T21:16:39.407

Link: CVE-2026-35237

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T05:00:09Z

Weaknesses