---
id: CVE-2026-55897
title: >-
  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
summary: >-
  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 lu…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: openwrt
product: luci
affected:
  - luci < 1.1.2-6
published: '2026-09-21'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:25:27.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-55897'
references:
  - url: >-
      https://github.com/openwrt/luci/commit/2df00deb122093cbf429266ffef7ad06aaecb48f
    label: security-advisories@github.com
  - url: >-
      https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829
    label: security-advisories@github.com
  - url: 'https://github.com/openwrt/luci/pull/8710'
    label: security-advisories@github.com
  - url: 'https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6'
    label: security-advisories@github.com
  - url: 'https://github.com/openwrt/luci/security/advisories/GHSA-vj96-f37g-37f6'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.0065
epssPercentile: 0.48896
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-21T20:05:24.106310Z'
ingestedAt: '2026-09-21T19:51:58.875Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.