CVE-2026-26141
Improper Authentication in Azure Arc Enables Local Privilege Escalation
Publication date: 2026-03-10
Last updated on: 2026-03-13
Assigner: Microsoft Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | azure_automation_hybrid_worker_windows_extension | From 1.0.0 (inc) to 1.3.74 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-287 | When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. |
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an improper authentication issue in Microsoft Azure Arc. It allows an authorized attacker to elevate their privileges locally, meaning they can gain higher-level access than they should have within the system.
How can this vulnerability impact me? :
The impact of this vulnerability is an elevation of privilege, which can lead to an attacker gaining greater control over the affected system. This can result in unauthorized access to sensitive data, modification of system configurations, or disruption of services.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know