CVE-2026-73298 Microsoft Container Migration Solution Accelerator: Authenticated IDOR allowing read/write/delete processes
Authenticated users can read, write, and delete other users' migration processes and files due to missing ownership checks in the Microsoft Container Migration Solution Accelerator.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73298?
CVE-2026-73298 is a high-severity missing authorization vulnerability in microsoft Container-Migration-Solution-Accelerator, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Microsoft Container Migration Solution Accelerator is a multi-service application that provides a multi-agent, AI-driven migration solution for moving container service configurations to Azure Kubernetes Service. In version 2.1.2 and earlier, a security vulnerability was identified in the Container Migration Solution Accelerator, specifically an authenticated IDOR (Insecure Direct Object Reference) that allows users to read, write, and delete processes belonging to other authenticated users. The issue affects multiple API endpoints, where ownership checks are missing, enabling unauthorized access and modification of migration data across users within the same organization. The vulnerability is present in both process and file management APIs, and the application relies on Entra ID authentication but lacks proper authorization controls between users. Authenticated users are able to access, modify, and delete processes and files belonging to other users without proper authorization checks.
Weakness: CWE-639
Which versions are affected by CVE-2026-73298?
How do I fix CVE-2026-73298?
No fix has been published for CVE-2026-73298 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-73298 being exploited?
There is no known exploitation of CVE-2026-73298 in the wild and no public exploit code.
Sources
Also known as GHSA-27mc-pccp-3x2x.