CVE-2026-70178

CVE-2026-70178

Missing authorization in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

secure@microsoft.com

Frequently asked questions

What is CVE-2026-70178?: CVE-2026-70178 is a high-severity vulnerability, classified under Missing Authorization. CVSS score: 8.5/10. Published 2026-09-03.
How severe is CVE-2026-70178?: High severity. CVSS v3 base score is 8.5 out of 10.