CVE-2026-101803 Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: XML).
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-101803?
CVE-2026-101803 is a medium-severity vulnerability in Oracle Corporation MySQL Cluster, published on 20 Oct 2026.
Official description
Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: XML). 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 high 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 and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H).
Weakness: CWE-284
Which versions are affected by CVE-2026-101803?
How do I fix CVE-2026-101803?
No fix has been published for CVE-2026-101803 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-101803 being exploited?
There is no known exploitation of CVE-2026-101803 in the wild and no public exploit code.
Sources
Also known as GHSA-xf97-cxf3-9vhf, UBUNTU-CVE-2026-101803.