# CVE-2026-17527: Missing authorization in Red Hat Container Native Virtualization 4.14

> A misconfigured ClusterRole allows users with view access to clone any PVC, bypassing namespace isolation and exfiltrating data.

- **Severity:** High 7.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A: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:** 27 Jul 2026
- **Updated:** 21 Sep 2026
- **Also known as:** AZL-94193, AZL-94241, GHSA-2cmm-29f6-xcpx

## What is CVE-2026-17527?

CVE-2026-17527 is a high-severity missing authorization vulnerability in Red Hat Container Native Virtualization 4.14, published on 27 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

In containerized-data-importer (CDI), the aggregated cdi.kubevirt.io:view ClusterRole, intended to provide read-only access to CDI resources, includes a rule granting create on the datavolumes/source subresource. CDI's DataVolume clone authorization accepts this permission as sufficient to authorize cloning the contents of any PVC the caller can name, without requiring write access to the source namespace. A user or service account bound to the view role, commonly granted cluster-wide via ClusterRoleBinding, who also has ordinary write access (edit/admin) to any single namespace, can use this to exfiltrate the contents of any PVC in the cluster into a namespace they control, bypassing namespace isolation and the read-only guarantee of the view role.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-17527?


## How do I fix CVE-2026-17527?

No fix has been published for CVE-2026-17527 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-17527 being exploited?

There is no known exploitation of CVE-2026-17527 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-17527 and fix it if it is affected.

What it is: CVE-2026-17527 is a high-severity missing authorization vulnerability in Red Hat Container Native Virtualization 4.14, published on 27 Jul 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-2026-17527 in the wild and no public exploit code.

Affected product: Red Hat Container Native Virtualization 4.14. 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-2026-17527/ (Markdown: https://insights.sbomify.com/CVE-2026-17527/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-17527
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-17527
- OSV: https://osv.dev/vulnerability/CVE-2026-17527

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-17527/
Summaries are generated and may contain mistakes; the official description above is the record.