{"cve":{"cve_id":"CVE-2026-55897","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0065,"epss_percentile":0.50026,"epss_as_of":"2026-10-15","description":"luci-app-advanced-reboot is a LuCI (web interface) application for OpenWrt that provides a  way to reboot your router into an alternative firmware partition or perform  reboot operations directly from the web UI. Prior to 1.1.2-6, the luci-app-advanced-reboot read ACL in applications/luci-app-advanced-reboot/root/usr/share/rpcd/acl.d/luci-app-advanced-reboot.json grants rpcd file.exec permission for the general shell interpreter /bin/sh. An authenticated delegated session with that read ACL can supply caller-controlled params; rpcd authorizes the executable path and passes those arguments to the shell, allowing arbitrary commands to execute as root. Builds without the /bin/sh exec grant, including the checked openwrt-24.10 and openwrt-23.05 branches, are not affected by this specific chain. This vulnerability is fixed in 1.1.2-6.","published_at":"2026-09-21T19:29:37.003000Z","last_modified_at":"2026-09-24T21:25:27.050000Z","cvss_v3_score":8.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-78"],"nvd_references":["https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6","https://github.com/openwrt/luci/pull/8710","https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f","https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829"],"vuln_status":"Deferred","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-09-21T22:33:11.669423Z","updated_at":"2026-09-26T06:45:42.960079Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"openwrt","vendor_name":"openwrt","product_slug":"luci","product_name":"luci","version_start":"< 1.1.2-6","version_start_inclusive":true,"version_end":"< 1.1.2-6","version_end_inclusive":true,"cpe23_uri":"cve5:openwrt:luci:< 1.1.2-6:< 1.1.2-6"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/openwrt/luci/pull/8710","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-09-21T19:29:37.003000Z","label":"CVE published","source":null}]}