# CVE-2026-111230: Netgate pfSense CE through 2.9.0 Local File Read via Dynamic DNS Update URL

> Privileged users can read sensitive system files as root by manipulating Dynamic DNS update URLs, exposing configuration and password hashes.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2026
- **Updated:** 15 Oct 2026
- **Also known as:** GHSA-c3v6-7g6h-r7q8

## What is CVE-2026-111230?

CVE-2026-111230 is a medium-severity path traversal vulnerability in Netgate pfSense CE, published on 15 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Netgate pfSense CE through 2.9.0 contains a local file read vulnerability that allows users with the Dynamic DNS client privilege to read files as root by setting a file:// custom Update URL in services_dyndns_edit.php. Attackers can set a non-matching Result Match string so _checkStatus() logs file contents such as /conf/config.xml or /etc/master.passwd to the system log.

Weakness: CWE-73 (External Control of File Name or Path)

## Which versions are affected by CVE-2026-111230?

It affects 1 product.


Products: Pfsense Pfsense.

## How do I fix CVE-2026-111230?

No fix has been published for CVE-2026-111230 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111230 being exploited?

There is no known exploitation of CVE-2026-111230 in the wild and no public exploit code.

## Other vulnerabilities in Netgate pfSense CE

- [CVE-2025-69691](https://insights.sbomify.com/CVE-2025-69691/): Code injection in n/a (critical 9.9)
- [CVE-2023-29974](https://insights.sbomify.com/CVE-2023-29974/): Weak cryptography in n/a (critical 9.8)
- [CVE-2025-69690](https://insights.sbomify.com/CVE-2025-69690/): Deserialization in n/a (critical 9.1)
- [CVE-2021-41282](https://insights.sbomify.com/CVE-2021-41282/): Code injection in n/a (high 8.8)
- [CVE-2016-10709](https://insights.sbomify.com/CVE-2016-10709/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-111230 and fix it if it is affected.

What it is: CVE-2026-111230 is a medium-severity path traversal vulnerability in Netgate pfSense CE, published on 15 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-111230 in the wild and no public exploit code.

Affected product: Netgate pfSense CE. 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-2026-111230/ (Markdown: https://insights.sbomify.com/CVE-2026-111230/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111230
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111230
- OSV: https://osv.dev/vulnerability/CVE-2026-111230

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111230/
Summaries are generated and may contain mistakes; the official description above is the record.