{"id":"CVE-2026-119409","aliases":["GHSA-p683-f7x2-pm4p"],"url":"https://o3.security/vulnerability/CVE-2026-119409","summary":"OPNsense before 26.7.8 Root Command Injection via Firmware Mirror Setting","details":"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.","published":"2026-10-30T11:30:46.595Z","modified":"2026-10-31T02:47:38.685198915Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47","label":"opnsense/core@1cc41fc"},"references":[{"type":"ADVISORY","url":"https://abraxaslabs.tech/research/opnsense-firmware-mirror-sed"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119409.json"},{"type":"PACKAGE","url":"https://github.com/opnsense/core"},{"type":"FIX","url":"https://github.com/opnsense/core/commit/1cc41fc39da99d59818c789b3b561f1515126f47"},{"type":"FIX","url":"https://github.com/opnsense/core/commit/8e214533d33c3af7481e86f616ee615adc6a0a73"},{"type":"ADVISORY","url":"https://github.com/opnsense/core/security/advisories/GHSA-p683-f7x2-pm4p"},{"type":"ARTICLE","url":"https://github.com/opnsense/update/blob/a2b8a10ba85f13b2cd002abb4c8692dde99f0261/src/update/opnsense-update.sh.in#L165"},{"type":"FIX","url":"https://github.com/opnsense/update/commit/9bfd3b7020499b6032ee64804193a9f3ce8178fa"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119409"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/opnsense-before-26.7.8-root-command-injection-via-firmware-mirror-setting"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-31T02:47:38.685198915Z"}}