CVE-2026-101775 Oracle MySQL Server & MySQL Cluster - Broken Access Control

Oracle MySQL Server and MySQL Cluster 8.4.0-8.4.12, 9.7.0-9.7.3, and 26.7.0-26.7.1 contain an integrity and availability vulnerability in Server: Replication, letting unauthenticated network attackers modify critical data or cause denial of service, exploit requires high attack complexity.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Published
20 October 2026
Updated
21 October 2026

Vendor fix

Update to the latest MySQL Server and MySQL Cluster versions beyond 8.4.12, 9.7.3, and 26.7.1.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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