CVE-2026-119423
Medium · 5.3CVSS
5.3
EPSS
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Published
Oct 30, 2026
CISA due date
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The record
OPNsense core before 26.7.8 contains a log injection vulnerability that allows unauthenticated attackers to plant victim IP addresses in the lockout_handler by submitting crafted WebGUI login usernames. Attackers can submit usernames like 'Invalid user <victim-ip>' repeatedly to add the victim to the sshlockout table, blocking SSH and WebGUI access and killing its pf states.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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