# CVE-2025-66467: Apache CloudStack: MinIO policy remains intact on bucket deletion

> Attackers can retain unauthorized access to new buckets with reused names due to missing policy cleanup on deletion in Apache CloudStack.

- **Severity:** High 8.0 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 May 2026
- **Updated:** 9 May 2026
- **Also known as:** GHSA-8fr5-rq46-q395

## What is CVE-2025-66467?

CVE-2025-66467 is a high-severity missing authorization vulnerability in Apache Cloudstack, published on 8 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Missing MinIO policy cleanup on bucket deletion via Apache CloudStack allows users to retain access to buckets which they previously owned. If another user creates a new bucket with the same name, the previous owners can gain unauthorized read and write access to it by using the previously generated access and secret keys.

Users are recommended to upgrade to Apache CloudStack versions 4.20.3.0 or 4.22.0.1, or later, which fixes this issue.

Weakness: CWE-459 (Incomplete Cleanup)

## Which versions are affected by CVE-2025-66467?

It affects 1 product.


Products: Apache Cloudstack.

## How do I fix CVE-2025-66467?

No fix has been published for CVE-2025-66467 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-66467 being exploited?

There is no known exploitation of CVE-2025-66467 in the wild and no public exploit code.

## Other vulnerabilities in Apache Cloudstack

- [CVE-2012-4501](https://insights.sbomify.com/CVE-2012-4501/): Missing authorization in n/a (critical 10.0)
- [CVE-2024-38346](https://insights.sbomify.com/CVE-2024-38346/): Apache CloudStack: Unauthenticated cluster service port leads to remote execution (critical 9.8)
- [CVE-2024-39864](https://insights.sbomify.com/CVE-2024-39864/): Apache CloudStack: Integration API service uses dynamic port when disabled (critical 9.8)
- [CVE-2024-29006](https://insights.sbomify.com/CVE-2024-29006/): Apache CloudStack: x-forwarded-for HTTP header parsed by default (critical 9.8)
- [CVE-2022-35741](https://insights.sbomify.com/CVE-2022-35741/): Apache CloudStack SAML Single Sign-On XXE (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-66467 and fix it if it is affected.

What it is: CVE-2025-66467 is a high-severity missing authorization vulnerability in Apache Cloudstack, published on 8 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-66467 in the wild and no public exploit code.

Affected product: Apache Cloudstack. 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-2025-66467/ (Markdown: https://insights.sbomify.com/CVE-2025-66467/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-66467
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-66467
- OSV: https://osv.dev/vulnerability/CVE-2025-66467

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-66467/
Summaries are generated and may contain mistakes; the official description above is the record.