# CVE-2026-7066: choieastsea simple-openstack-mcp server.py exec_openstack os command injection

> Remote attackers can execute arbitrary OS commands via the exec_openstack function in the simple-openstack-mcp server.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Apr 2026
- **Updated:** 27 Apr 2026
- **Also known as:** GHSA-q86r-x2v5-wv4v

## What is CVE-2026-7066?

CVE-2026-7066 is a medium-severity command injection vulnerability in choieastsea simple-openstack-mcp, published on 26 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was found in choieastsea simple-openstack-mcp up to 767b2f4a8154cca344344b9725537a58399e6036. The affected element is the function exec_openstack of the file server.py. The manipulation results in os command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2026-7066?


## How do I fix CVE-2026-7066?

No fix has been published for CVE-2026-7066 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-7066 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7066 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-7066 and fix it if it is affected.

What it is: CVE-2026-7066 is a medium-severity command injection vulnerability in choieastsea simple-openstack-mcp, published on 26 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7066 exists.

Affected product: choieastsea simple-openstack-mcp. 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-2026-7066/ (Markdown: https://insights.sbomify.com/CVE-2026-7066/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-7066
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7066
- OSV: https://osv.dev/vulnerability/CVE-2026-7066

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-7066/
Summaries are generated and may contain mistakes; the official description above is the record.