# CVE-2009-4139: Cross-site request forgery in Red Hat Enterprise Linux 6

> A CSRF vulnerability in Spacewalk Java allows attackers to hijack user sessions and escalate privileges to administrator access.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 27 Jul 2011
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-pvxx-xvvp-hc24, RHSA-2011:0879

## What is CVE-2009-4139?

CVE-2009-4139 is a medium-severity vulnerability in Red Hat Enterprise Linux 6, published on 27 Jul 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A flaw was found in Spacewalk Java site packages. This cross-site request forgery (CSRF) vulnerability allows a remote attacker to hijack the authentication of arbitrary users. This can lead to unauthorized actions, including disabling user accounts, adding new user accounts, or escalating privileges by modifying existing user accounts to have administrator access.

Weakness: CWE-352 (Cross-Site Request Forgery), CWE-346 (Origin Validation Error)

## Which versions are affected by CVE-2009-4139?

It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `spacewalk-java` | Red Hat:network_satellite:5.4::el5 | All versions | 0:1.2.39-85.el5sat |
| `spacewalk-java-config` | Red Hat:network_satellite:5.4::el5 | All versions | 0:1.2.39-85.el5sat |
| `spacewalk-java-lib` | Red Hat:network_satellite:5.4::el5 | All versions | 0:1.2.39-85.el5sat |
| `spacewalk-java-oracle` | Red Hat:network_satellite:5.4::el5 | All versions | 0:1.2.39-85.el5sat |
| `spacewalk-taskomatic` | Red Hat:network_satellite:5.4::el5 | All versions | 0:1.2.39-85.el5sat |

Products: Redhat Network Satellite Server, Redhat Spacewalk-Java.

## How do I fix CVE-2009-4139?

Apply the vendor's patch.

## Is CVE-2009-4139 being exploited?

There is no known exploitation of CVE-2009-4139 in the wild and no public exploit code.

## Other vulnerabilities in Red Hat Enterprise Linux 6

- [CVE-2009-0788](https://insights.sbomify.com/CVE-2009-0788/): Server-side request forgery in n/a (medium 6.4)
- [CVE-2011-0717](https://insights.sbomify.com/CVE-2011-0717/): Auth bypass in n/a (medium 5.8)
- [CVE-2011-0718](https://insights.sbomify.com/CVE-2011-0718/): Auth bypass in n/a (medium 5.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-4139 and fix it if it is affected.

What it is: CVE-2009-4139 is a medium-severity vulnerability in Red Hat Enterprise Linux 6, published on 27 Jul 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2009-4139 in the wild and no public exploit code.

Affected product: Red Hat Enterprise Linux 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-2009-4139/ (Markdown: https://insights.sbomify.com/CVE-2009-4139/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-4139
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-4139
- OSV: https://osv.dev/vulnerability/CVE-2009-4139

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-4139/
Summaries are generated and may contain mistakes; the official description above is the record.