# CVE-2026-5136: Foreman: foreman: privilege escalation to administrator-level access via usergroup role assignment manipulation

> Authenticated users with usergroup management permissions can escalate to administrator access by manipulating role assignments in Foreman.

- **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 Jul 2026
- **Updated:** 2 Jul 2026
- **Also known as:** GHSA-fpxf-rppp-4373

## What is CVE-2026-5136?

CVE-2026-5136 is a high-severity vulnerability in Redhat Satellite, published on 1 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access.

Weakness: CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-5136?

It affects 2 products.


Products: Redhat Satellite, Theforeman Foreman.

## How do I fix CVE-2026-5136?

Apply the vendor's patch.

## Is CVE-2026-5136 being exploited?

There is no known exploitation of CVE-2026-5136 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Satellite

- [CVE-2024-7012](https://insights.sbomify.com/CVE-2024-7012/): Puppet-foreman: an authentication bypass vulnerability exists in foreman (critical 9.8)
- [CVE-2024-7923](https://insights.sbomify.com/CVE-2024-7923/): Puppet-pulpcore: an authentication bypass vulnerability exists in pulpcore (critical 9.8)
- [CVE-2026-96659](https://insights.sbomify.com/CVE-2026-96659/): Foreman: excessive permissions for viewer role on preview (critical 9.1)
- [CVE-2023-0118](https://insights.sbomify.com/CVE-2023-0118/): Foreman: arbitrary code execution through templates (critical 9.1)
- [CVE-2008-2369](https://insights.sbomify.com/CVE-2008-2369/): Hardcoded credentials in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5136 and fix it if it is affected.

What it is: CVE-2026-5136 is a high-severity vulnerability in Redhat Satellite, published on 1 Jul 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-2026-5136 in the wild and no public exploit code.

Affected product: Redhat Satellite. 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-2026-5136/ (Markdown: https://insights.sbomify.com/CVE-2026-5136/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5136
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5136
- OSV: https://osv.dev/vulnerability/CVE-2026-5136

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-5136/
Summaries are generated and may contain mistakes; the official description above is the record.