What is CVE-2026-26141?

CVE-2026-26141 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2026-26141 cover?

CVE-2026-26141 covers the following CVE IDs: CVE-2026-26141. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-26141?

CVE-2026-26141 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-26141?

CVE-2026-26141 affects 1 product, including: Azure Automation Hybrid Worker Windows Extension.

CVE-2026-26141HighCVSS 7.8

Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-26141 →

📋 Description

Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.

🎯 Affected products1

Azure Automation Hybrid Worker Windows Extension

✅ Remediation

KBRelease Notes (Security Update) — fixed build 1.3.74

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26141
patchhttps://learn.microsoft.com/en-us/azure/automation/extension-based-hybrid-runbook-worker-install?tabs=linux%2Cps
referencehttps://review.learn.microsoft.com/en-us/azure/automation/whats-new?branch=main