CVE-2026-119423: opnsense core

Affected products, as the CNA wrote them
Vendor	Product	Versions
opnsense	core pkg:github/opnsense/core	affected before 26.7.8 semver Other versions: unaffected

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.9	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
5.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0038, the 31st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

30 Oct 2026, 11:30 UTC Confirmed by the CVE List
30 Oct 2026, 12:16 UTC Confirmed by NVD

Sources

References from the CNA

github.com/opnsense/core/commit/14f8f7dd1d5f06522d60794a7beeac7adb9eca68 patch
github.com/opnsense/core/commit/2076f2c195bf9537ec220f0e5d6aff998f057410 patch
github.com/opnsense/core/blob/26.7.7/src/opnsense/mvc/app/library/OPNsense/Auth/AuthenticationFactory.php#L232 technical-description
github.com/opnsense/core/blob/26.7.7/src/opnsense/scripts/syslog/lockout_handler#L70 technical-description
github.com/opnsense/core/security/advisories/GHSA-2v2x-m4j7-76pv vendor-advisory
abraxaslabs.tech/research/opnsense-lockout-factory-ip third-party-advisory
github.com/opnsense/core product
www.vulncheck.com/advisories/opnsense-core-before-26.7.8-lockout-ip-planting-via-webgui-login-username third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.