CVE-2026-119409
highOPNsense before 26.7.8 contains a command injection vulnerability that allows authenticated users with the System: Firmware privilege to execute commands as ro…
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://abraxaslabs.tech/research/opnsense-firmware-mirror-sed disclosure@vulncheck.com
- https://github.com/opnsense/core disclosure@vulncheck.com
- https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47 disclosure@vulncheck.com
- https://github.com/opnsense/core/commit/8e214533d33c3af7481e86f616ee615adc6a0a73 disclosure@vulncheck.com
- https://github.com/opnsense/core/security/advisories/GHSA-p683-f7x2-pm4p disclosure@vulncheck.com
- https://github.com/opnsense/update/blob/a2b8a10ba85f13b2cd002abb4c8692dde99f0261/src/updat... disclosure@vulncheck.com
- https://github.com/opnsense/update/commit/9bfd3b7020499b6032ee64804193a9f3ce8178fa disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/opnsense-before-26.7.8-root-command-injection-via-fir... disclosure@vulncheck.com