---
id: "CVE-2026-119424"
kind: "vulnerability"
aliases: ["CVE-2026-119424"]
title: "OPNsense: CR/LF in WPA fields lets authenticated users inject root-run daemon directives"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["firewall", "freebsd", "infrastructure", "opnsense", "wireless"]
not_affected_if: ["no-wireless-edit-users", "version-26.7.8-or-later"]
published_at: "2026-10-30T12:16:39+00:00"
first_seen_at: "2026-10-30T12:30:25+00:00"
updated_at: "2026-10-30T12:32:33+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119424", "first_seen_at": "2026-10-30T12:30:25+00:00"}]
---

# OPNsense: CR/LF in WPA fields lets authenticated users inject root-run daemon directives

OPNsense core before 26.7.8 does not strip carriage return and line feed characters from wireless WPA fields. A user with wireless-edit privilege can append arbitrary wpa_supplicant or hostapd directives that root-run daemons then load.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed OPNsense version in the web interface or with `opnsense-version`; versions below `26.7.8` are in the stated range.
- Review users who hold the wireless-edit privilege in System > Access > Users and Groups.

## Fix

- OPNsense core: move to `26.7.8` or later.

## Timeline

- 2026-10-30T12:30:25+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119424

## From the sources

OPNsense core before 26.7.8 contains a configuration line injection vulnerability that allows authenticated users with wireless-edit privilege to inject directives by embedding CR/LF characters in WPA fields. Attackers can place newlines in wpa.identity, wpa.passphrase, or RADIUS shared secrets to append arbitrary wpa_supplicant or hostapd directives loaded by root-run daemons.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_