HIGH 8.6 NVD
CVE-2026-119409
OPNsense before 26.7.8 contains a command injection vulnerability that allows authenticated users with the System: Firmware privilege to execute commands as roo
OPNsense before 26.7.8 contains a command injection vulnerability that allows authenticated users with the System: Firmware privilege to execute commands as root by storing a malicious firmware mirror URL. Attackers can submit shell metacharacters through POST /api/core/firmware/set that opnsense-update evaluates with eval, and can also disable package signature verification through sed injection.
References
- https://abraxaslabs.tech/research/opnsense-firmware-mirror-sed
- https://github.com/opnsense/core
- https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47
- https://github.com/opnsense/core/commit/8e214533d33c3af7481e86f616ee615adc6a0a73
- https://github.com/opnsense/core/security/advisories/GHSA-p683-f7x2-pm4p
This high severity vulnerability with a CVSS score of 8.6 was published on 2026-10-30 via NVD.
vulnfeed aggregates 17475 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.