---
id: CVE-2026-72842
title: >-
  luci-app-lxc contains an ACL inconsistency vulnerability that allows
  low-privileged authenticated LuCI users to access backend container management
  routes without proper authorization checks
summary: >-
  luci-app-lxc contains an ACL inconsistency vulnerability that allows
  low-privileged authenticated LuCI users to access backend container management
  routes without proper authorization checks. Attackers can exploit path
  traversal via `/.%…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-73
published: '2026-08-13'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T20:35:08.537'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72842'
references:
  - url: 'https://github.com/openwrt/luci/security/advisories/GHSA-jf59-v86x-fwf2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/openwrt-luci-app-lxc-acl-inconsistency-authentication-bypass
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00616
epssPercentile: 0.47308
ingestedAt: '2026-09-09T21:22:45.534Z'
---

## Overview

luci-app-lxc contains an ACL inconsistency vulnerability that allows low-privileged authenticated LuCI users to access backend container management routes without proper authorization checks. Attackers can exploit path traversal via `/.%2E` in the `lxc_name` parameter to escape container directories and control host-side scripts executed through `lxc.hook.start-host`, achieving root code execution on the OpenWrt host.

## Remediation

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