Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Server, MySQL Cluster accessible data as well as unauthorized read access to a subset of MySQL Server, MySQL Cluster accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Oracle Corporation MySQL Server affected
Version Status Constraints
8.4.0-8.4.12 affected —
9.7.0-9.7.3 affected —
26.7.0-26.7.1 affected —
Oracle Corporation MySQL Cluster affected
Version Status Constraints
8.0.0-8.0.49 affected —
8.4.0-8.4.12 affected —
9.7.0-9.7.3 affected —
26.7.0-26.7.1 affected —

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Project Subscriptions

Vendors Products
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Mysql Server Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.oracle.com/security-alerts/cpuoct2026.html cve-icon cve-icon
History

Wed, 21 Oct 2026 03:00:00 +0000

Type Values Removed Values Added
Title Authorization Bypass via MySQL JSON Component Leading to Data Modification and DoS
Weaknesses CWE-284

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: JSON). Supported versions that are affected are MySQL Server: 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; MySQL Cluster: 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3 and 26.7.0-26.7.1. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all MySQL Server, MySQL Cluster accessible data as well as unauthorized read access to a subset of MySQL Server, MySQL Cluster accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H).
First Time appeared Oracle
Oracle mysql Cluster
Oracle mysql Server
CPEs cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle mysql Cluster
Oracle mysql Server
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-20T21:22:55.150Z

Reserved: 2026-09-28T15:40:09.506Z

Link: CVE-2026-101785

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T22:18:34.160

Modified: 2026-10-20T22:18:34.160

Link: CVE-2026-101785

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T02:45:14Z

Weaknesses