CVE-2026-57155

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the Firewall Alias GeoIP importer's processzip and processgzip paths in src/opnsense/scripts/filter/lib/alias/geoip.py use an unvalidated CSV countrycode value to construct output filenames below...

CVE-2026-57155

OPNsense versions prior to 26.1.11 and 26.4.1p1 are vulnerable to Root Remote Code Execution (RCE) via an arbitrary file write in the Firewall Alias GeoIP importer . The root cause is an unvalidated CSV country_code value in the process_zip() and process_gzip() paths of src/opnsense/scripts/filte...

CVE-2026-57155 OPNsense: Root RCE via Arbitrary File Write in GeoIP Alias Importer

OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the Firewall Alias GeoIP importer's processzip and processgzip paths in src/opnsense/scripts/filter/lib/alias/geoip.py use an unvalidated CSV countrycode value to construct output filenames below...