# CVE-2026-111219: Netgate pfSense CE newline injection in PPPoE settings

Source: https://junglewise.ai/threats/cve-2026-111219-netgate-pfsense-ce-through-2-9-0-contains-a-newline-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-111219 · Severity: medium · CVSS 6.6 · Published 2026-10-15

pfSense CE is a network firewall and router with a web-based management interface. This vulnerability allows users with PPPoE Server Edit privileges to inject malicious configuration into the PPPoE authentication daemon by inserting newlines in username fields. An attacker can add commands that execute as root when a PPPoE client authenticates, potentially leading to full system compromise.

Technologies: [Netgate Pfsense Ce](https://junglewise.ai/threats/technologies/pfsense-ce). Vendors: [Netgate](https://junglewise.ai/threats/vendors/netgate).

## Quick answers

**Is CVE-2026-111219 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111219 being exploited in the wild.

**How severe is CVE-2026-111219?** Medium severity, with a CVSS score of 6.6, published 15 October 2026.

**Which products and versions are affected?** Netgate Pfsense Ce through 2.9.0.

**Is there a fix for CVE-2026-111219?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-111219 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-111219?** Check whether you run Netgate Pfsense Ce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a newline injection flaw in services_pppoe_edit.php that fails to validate the username POST field before writing it to the mpd.secret file. Attackers with PPPoE Server Edit privilege can inject lines with secrets beginning with '!' to trigger arbitrary command execution in mpd5 running as root during PPPoE client authentication. This requires authenticated access to the PPPoE configuration page.

## Affected products

- Netgate pfSense CE through 2.9.0

## Timeline

- 2026-10-15: disclosed

## References

- [https://github.com/](https://github.com/)
- [https://abraxaslabs.tech/research/pfsense-ce-leftovers](https://abraxaslabs.tech/research/pfsense-ce-leftovers)

## Related threats

- [Netgate pfSense CE reflected XSS in firewall_rules.php](https://junglewise.ai/threats/cve-2026-111233-netgate-pfsense-ce-2-7-1-through-2-9-0-contains-a-reflected)
- [Netgate pfSense CE stored cross-site scripting in firewall rules](https://junglewise.ai/threats/cve-2026-111232-netgate-pfsense-ce-2-3-0-through-2-9-0-contains-a-stored-cross)
- [Netgate pfSense CE authorization bypass in config restore](https://junglewise.ai/threats/cve-2026-111231-netgate-pfsense-ce-through-2-9-0-contains-an-authorization)
- [Netgate pfSense CE local file read via Dynamic DNS](https://junglewise.ai/threats/cve-2026-111230-netgate-pfsense-ce-through-2-9-0-contains-a-local-file-read)
- [pfSense CE command injection in captive portal HA sync](https://junglewise.ai/threats/cve-2026-111229-pfsense-ce-2-7-0-through-2-9-0-contains-a-command-injection)