CVE-2026-111228
CVE-2026-111228 · Netgate pfSense CE 2.7.1 through 2.9.0 CRLF Injection via services_unbound_advanced.php
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.1 · Medium · EPSS 1.8%
- Published
- Updated
Affected products and versions
pfsense ce
- Versions
- ≥ 2.7.1, ≤ 2.9.0: Affected (semver)
No fix published
Original sources
- https://github.com/abraxas/pfsense-unbound-sock-timeout
- https://abraxaslabs.tech/research/pfsense-ce-leftovers
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/usr/local/www/services_unbound_advanced.php#L178
- https://github.com/pfsense/pfsense/blob/9363ac5b8651a1c7a333180425ce7719070f95f9/src/etc/inc/unbound.inc#L590
- https://www.vulncheck.com/advisories/netgate-pfsense-ce-2.7.1-through-2.9.0-crlf-injection-via-services-unbound-advanced-php
- https://nvd.nist.gov/vuln/detail/CVE-2026-111228