# CVE-2026-101800: Oracle MySQL Server privilege escalation in Security: Privileges

Source: https://junglewise.ai/threats/cve-2026-101800-vulnerability-in-the-mysql-server-mysql-cluster-product-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-101800 · Severity: medium · CVSS 6.8 · Published 2026-10-20

A privilege escalation vulnerability in Oracle MySQL Server and MySQL Cluster allows low-privileged attackers with network access to gain unauthorized creation, deletion, or modification of sensitive data. Attackers can exploit this flaw to read and modify critical database contents without proper authorization, potentially exposing or corrupting business-critical information stored in MySQL databases.

Technologies: [Oracle MySQL Server](https://junglewise.ai/threats/technologies/mysql-server), [Oracle Mysql Cluster](https://junglewise.ai/threats/technologies/mysql-cluster). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-101800 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-101800 being exploited in the wild.

**How severe is CVE-2026-101800?** Medium severity, with a CVSS score of 6.8, published 20 October 2026.

**Which products and versions are affected?** Oracle MySQL Server 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1; Oracle Mysql Cluster 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1.

**Is there a fix for CVE-2026-101800?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-101800 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-101800?** Check whether you run Oracle MySQL Server or Oracle Mysql Cluster at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A privilege escalation flaw in the MySQL Server Security: Privileges component allows an authenticated low-privileged network attacker to bypass access controls and gain unauthorized read and write access to critical database data. The vulnerability is difficult to exploit and requires low-level privileges and network access via multiple protocols. The flaw impacts confidentiality and integrity of data without causing availability loss.

## Affected products

- Oracle MySQL Server 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1
- Oracle MySQL Cluster 8.0.0-8.0.49, 8.4.0-8.4.12, 9.7.0-9.7.3, 26.7.0-26.7.1

## Timeline

- 2026-10-20: disclosed

## References

- [https://www.oracle.com/security-alerts/cpuoct2026.html](https://www.oracle.com/security-alerts/cpuoct2026.html)

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