CVE-2026-26141 Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability
An authorized attacker can elevate privileges locally on Azure Arc-enabled Windows VMs due to improper authentication in the Hybrid Worker Extension.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26141?
CVE-2026-26141 is a high-severity vulnerability in Microsoft Azure Automation Hybrid Worker Windows Extension, published on 10 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.
Which versions are affected by CVE-2026-26141?
It affects 1 product.
Products include Microsoft Azure Automation Hybrid Worker Windows Extension.
How do I fix CVE-2026-26141?
No fix has been published for CVE-2026-26141 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-26141 being exploited?
There is no known exploitation of CVE-2026-26141 in the wild and no public exploit code.
Sources
Also known as GHSA-rfgw-m548-mw46.