GHSA-2h55-2m98-rp29MediumCVSS 5.9
OPNsense core through 26.7.8 contains a configuration injection vulnerability that allows...
🔗 CVE IDs covered (1)
📋 Description
OPNsense core through 26.7.8 contains a configuration injection vulnerability that allows authenticated users to append ntpd.conf directives by embedding newlines in the fudge and refid fields. Attackers holding the page-services-ntp-gps or PPS privilege can submit CR/LF characters via services_ntpd_gps.php or services_ntpd_pps.php to inject directives loaded by ntpd running as root.
🔗 References (8)
- https://github.com/opnsense/core/security/advisories/GHSA-fq94-cxvc-9r7w
- https://nvd.nist.gov/vuln/detail/CVE-2026-119560
- https://abraxaslabs.tech/research/opnsense-ntp-gps-fudge
- https://github.com/opnsense/core
- https://github.com/opnsense/core/blob/26.7.8/src/etc/inc/plugins.inc.d/ntpd.inc#L285-L312
- https://github.com/opnsense/core/blob/26.7.8/src/www/services_ntpd_gps.php#L49
- https://www.vulncheck.com/advisories/opnsense-core-through-26.7.8-ntp-configuration-injection-via-gps-and-pps-fudge-fields
- https://github.com/advisories/GHSA-2h55-2m98-rp29