# 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.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-27mc-pccp-3x2x

## 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 (Authorization Bypass Through User-Controlled Key)

## 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.

## Is CVE-2026-73298 being exploited?

There is no known exploitation of CVE-2026-73298 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-73298 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-73298 in the wild and no public exploit code.

Affected product: microsoft Container-Migration-Solution-Accelerator. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-73298/ (Markdown: https://insights.sbomify.com/CVE-2026-73298/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-73298
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-73298
- OSV: https://osv.dev/vulnerability/CVE-2026-73298

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-73298/
Summaries are generated and may contain mistakes; the official description above is the record.