# CVE-2026-111219: Netgate pfSense CE through 2.9.0 Command Injection via PPPoE Server Username

> Privileged users can inject commands into PPPoE server configuration, leading to root code execution upon client authentication.

- **Severity:** High 7.5 (`CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/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:** 16 Oct 2026
- **Also known as:** GHSA-gg6q-95gx-p8r8

## What is CVE-2026-111219?

CVE-2026-111219 is a high-severity command injection 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 newline injection vulnerability in services_pppoe_edit.php that allows privileged users to inject mpd.secret entries via unvalidated username POST fields. Attackers with the PPPoE Server Edit privilege can add a line whose secret begins with '!', making mpd5 run commands as root when a PPPoE client authenticates.

Weakness: CWE-93 (Improper Neutralization of CRLF Sequences)

## Which versions are affected by CVE-2026-111219?

It affects 1 product.


Products: Pfsense Pfsense.

## How do I fix CVE-2026-111219?

No fix has been published for CVE-2026-111219 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111219 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111219 exists.

## 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-2026-111219 and fix it if it is affected.

What it is: CVE-2026-111219 is a high-severity command injection 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111219 exists.

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-2026-111219/ (Markdown: https://insights.sbomify.com/CVE-2026-111219/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111219
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111219
- OSV: https://osv.dev/vulnerability/CVE-2026-111219

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111219/
Summaries are generated and may contain mistakes; the official description above is the record.