# CVE-2026-12405: Rubygem-foreman_remote_execution: command injection in job invocations via effective_user parameter

> Attackers with job execution permissions can inject shell commands via the effective_user parameter in Red Hat Satellite, leading to arbitrary code execution on target infrastructure.

- **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:** Yes
- **Published:** 1 Oct 2026
- **Updated:** 7 Oct 2026
- **Also known as:** GHSA-9jhx-3c73-g9rh

## What is CVE-2026-12405?

CVE-2026-12405 is a high-severity command injection vulnerability in Red Hat Satellite 6, published on 1 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw was found in rubygem-foreman_remote_execution. A command injection vulnerability exists in the Red Hat Satellite API (/api/v2/job_invocations). When a job template has the effective_user property marked as overridable: true, the application fails to properly sanitize the effective_user input provided during the API request. The exploitation does not rely on the content or logic of the Job Template/playbook itself; rather, the injection occurs during the instantiation of the job execution environment by the Satellite server. An attacker with permissions to execute job templates can inject arbitrary shell commands into this parameter, which are executed on the target infrastructure with the privileges of the execution user.

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

## Which versions are affected by CVE-2026-12405?


## How do I fix CVE-2026-12405?

Apply the vendor's patch.

## Is CVE-2026-12405 being exploited?

There is no known exploitation of CVE-2026-12405 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-12405 and fix it if it is affected.

What it is: CVE-2026-12405 is a high-severity command injection vulnerability in Red Hat Satellite 6, published on 1 Oct 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-2026-12405 in the wild and no public exploit code.

Affected product: Red Hat Satellite 6. 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-2026-12405/ (Markdown: https://insights.sbomify.com/CVE-2026-12405/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-12405
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-12405
- OSV: https://osv.dev/vulnerability/CVE-2026-12405

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-12405/
Summaries are generated and may contain mistakes; the official description above is the record.