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.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
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
Which versions are affected by CVE-2026-12405?
How do I fix CVE-2026-12405?
Apply the vendor's patch.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-12405 being exploited?
There is no known exploitation of CVE-2026-12405 in the wild and no public exploit code.
Sources
Also known as GHSA-9jhx-3c73-g9rh.