CVE-2026-119424

OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity

State: Published
Severity: 6.1 Medium
Published: Oct 30, 2026
Updated: Oct 30, 2026
Reserved: Oct 30, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.1 Medium	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	6.8 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H	VulnCheck

Weaknesses

CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')

Affected Products

Product	Versions
coreopnsense	before 26.7.8Affected

References

https://github.com/opnsense/core/commit/9f1eac0f9bdf705766ab61f9d62b9d55757fd0dapatch
https://github.com/opnsense/core/commit/3bbd714b4c4b60f164e2e908501f208d3eadf645patch
https://github.com/opnsense/core/blob/26.7.7/src/opnsense/mvc/app/models/OPNsense/Interfaces/Wlan.xml#L185technical-description
https://github.com/opnsense/core/blob/26.7.7/src/etc/inc/interfaces.inc#L1901technical-description
https://abraxaslabs.tech/research/opnsense-wlan-wpa-linethird-party-advisory
https://github.com/opnsense/coreproduct
VulnCheck Advisory: OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identitythird-party-advisory

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