What is CVE-2026-46860?

CVE-2026-46860 is a critical-severity vulnerability in Oracle MySQL Router, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-06-17.

How severe is CVE-2026-46860?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Oracle MySQL Router

CVE-2026-46860

Vulnerability in the MySQL Router product of Oracle MySQL (component: Router: General). Supported versions that are affected are 9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise MySQL Router. Successful attacks of this vulnerability can result in takeover of MySQL Router. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Published 2026-06-17 · last modified 2026-06-18.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Oracle MySQL Router
Oracle Corporation MySQL Router — versions 9.0.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

www.oracle.com/security-alerts/cspujun2026.html (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-46860?: CVE-2026-46860 is a critical-severity vulnerability in Oracle MySQL Router, classified under Improper Access Control. CVSS score: 9.8/10. Published 2026-06-17.
How severe is CVE-2026-46860?: Critical severity. CVSS v3 base score is 9.8 out of 10.