# CVE-2026-111228: Netgate pfSense CE 2.7.1 through 2.9.0 CRLF Injection via services_unbound_advanced.php

> Authenticated users can inject CRLF characters into Unbound configuration to override DNS records and forwarding settings for all clients.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L`)
- **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-3pxq-gxxr-7p9c

## What is CVE-2026-111228?

CVE-2026-111228 is a medium-severity 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 from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanced.php that allows authenticated users with DNS Resolver: Advanced privilege to inject Unbound directives. Attackers can embed CR/LF characters in the unvalidated sock_queue_timeout parameter, which is written raw into unbound.conf, to override local records and forwarding for all clients.

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

## Which versions are affected by CVE-2026-111228?

It affects 1 product.


Products: Pfsense Pfsense.

## How do I fix CVE-2026-111228?

No fix has been published for CVE-2026-111228 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-111228 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111228 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-2026-111228 and fix it if it is affected.

What it is: CVE-2026-111228 is a medium-severity 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-2026-111228 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-2026-111228/ (Markdown: https://insights.sbomify.com/CVE-2026-111228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-111228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111228
- OSV: https://osv.dev/vulnerability/CVE-2026-111228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-111228/
Summaries are generated and may contain mistakes; the official description above is the record.