CVE-2026-26124 Microsoft ACI Confidential Containers Elevation of Privilege Vulnerability
An authorized attacker can exploit path traversal in Azure Compute Gallery to elevate privileges locally within Microsoft ACI Confidential Containers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26124?
CVE-2026-26124 is a medium-severity path traversal vulnerability in Microsoft ACI Confidential Containers, published on 5 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
'.../...//' in Azure Compute Gallery allows an authorized attacker to elevate privileges locally.
Which versions are affected by CVE-2026-26124?
It affects 1 product.
Products include Microsoft Aci Confidential Containers.
How do I fix CVE-2026-26124?
No fix has been published for CVE-2026-26124 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-26124 being exploited?
There is no known exploitation of CVE-2026-26124 in the wild and no public exploit code.
Other vulnerabilities in Microsoft ACI Confidential Containers
Sources
Also known as GHSA-f9c2-5rj2-5gp8.