Power Automate Elevation of Privilege Vulnerability

Date Sep 3, 2026

Type Patch Tuesday

Signal High-risk advisory

Vendor / Product Microsoft · Power Automate

CVE CVE-2026-65818

High-risk advisory CVE-2026-65818

Summary

Server-side request forgery (ssrf) in Power Automate allows an authorized attacker to elevate privileges over a network. Published in September 2026 Early Security Updates. MSRC exploitability: Publicly Disclosed:No;Exploited:No;Latest Software Release:N/A.

Why it matters

Microsoft published this item through its Security Update Guide, making it part of Patch Tuesday triage for affected Windows, cloud, or application estates. EPSS percentile: 26%.

Operator check

Review the Microsoft Security Update Guide entry for CVE-2026-65818. Confirm whether Power Automate is deployed, then apply the current security update or documented mitigation. CVSS score: 8.5. EPSS probability: 0.3%; percentile: 26%.

Sources

MSRC 2026-Sep Security Update Guide NVD — CVE-2026-65818

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