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CVE-2026-119424medium6.8

OPNsense before 26.7.8 Wireless WPA Configuration Line Injection via Identity

Impact

OPNsense core before 26.7.8 has a configuration line injection vulnerability, allowing authenticated users with wireless-edit privilege to inject directives via CR/LF characters in WPA fields. This affects versions less than 26.7.8. Attackers can append arbitrary directives loaded by root-run daemons.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

opnsense · VulnCheck

core

1 range
VulnCheck version evidence

Package identity

pkg:github/opnsense/core

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 26.7.8

semver versions

unaffected

unknown

Other versions: unaffected

Original source 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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119424

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-93 ↗

Improper Neutralization of CRLF Sequences ('CRLF Injection')

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*

Before: 26.7.8

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "26.7.8"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-30

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.

References

7 sources
github.com/opnsense/core/commit/9f1eac0f9bdf705766ab61f9d62b9d55757fd0da
patchVulnCheck
github.com/opnsense/core/commit/3bbd714b4c4b60f164e2e908501f208d3eadf645
patchVulnCheck
github.com/opnsense/core/blob/26.7.7/src/opnsense/mvc/app/models/OPNsense/Interfaces/Wlan.xml
technical-descriptionVulnCheck
github.com/opnsense/core/blob/26.7.7/src/etc/inc/interfaces.inc
technical-descriptionVulnCheck
abraxaslabs.tech/research/opnsense-wlan-wpa-line
third-party-advisoryVulnCheck
github.com/opnsense/core
productVulnCheck
View 1 more references
www.vulncheck.com/advisories/opnsense-before-26.7.8-wireless-wpa-configuration-line-injection-via-identity
third-party-advisoryVulnCheck