# CVE-2026-42143: Coolify: OS Command Injection via Persistent Volume Names - Root RCE on Managed Servers

> Authenticated users can inject shell commands via persistent volume names to execute arbitrary code as root on managed servers.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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:** Not needed
- **Fix available:** No
- **Published:** 7 Jul 2026
- **Updated:** 7 Jul 2026
- **Also known as:** GHSA-6pmw-6m96-4v4m

## What is CVE-2026-42143?

CVE-2026-42143 is a high-severity command injection vulnerability in coollabsio coolify, published on 7 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, user-controlled persistent volume names are interpolated into shell commands executed on managed servers without escaping or validation, allowing an authenticated member to inject shell metacharacters and execute commands as root when volume operations are triggered. This issue appears to be fixed in version 4.0.0-beta.471.

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

## Which versions are affected by CVE-2026-42143?


## How do I fix CVE-2026-42143?

No fix has been published for CVE-2026-42143 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-42143 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42143 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-42143 and fix it if it is affected.

What it is: CVE-2026-42143 is a high-severity command injection vulnerability in coollabsio coolify, published on 7 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42143 exists.

Affected product: coollabsio coolify. 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-2026-42143/ (Markdown: https://insights.sbomify.com/CVE-2026-42143/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-42143
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-42143
- OSV: https://osv.dev/vulnerability/CVE-2026-42143

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-42143/
Summaries are generated and may contain mistakes; the official description above is the record.