Medium severity5.5NVD Advisory· Published Oct 15, 2026· Updated Oct 15, 2026
CVE-2026-111228
CVE-2026-111228
Description
Netgate pfSense CE from 2.7.1 through 2.9.0 contains a CRLF injection vulnerability in services_unbound_advanced.php that allows authenticated users with DNS Resolver: Advanced privilege to inject Unbound directives. Attackers can embed CR/LF characters in the unvalidated sock_queue_timeout parameter, which is written raw into unbound.conf, to override local records and forwarding for all clients.
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Affected products
1- Range: 2.7.1 - 2.9.0
Patches
Vulnerability mechanics
References
4- abraxaslabs.tech/research/pfsense-ce-leftoversnvd
- github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/unbound.incnvd
- github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_unbound_advanced.phpnvd
- www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.1-through-2.9.0-crlf-injection-via-services-unbound-advanced-phpnvd
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