CVE-2026-72842

OpenWrt luci-app-lxc ACL Inconsistency Authentication Bypass

Published Aug 13, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:openwrt:luci:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Openwrt
Openwrt luci
Vendors & Products Openwrt
Openwrt luci
Type Values Removed Values Added
Description 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.
Title OpenWrt luci-app-lxc ACL Inconsistency Authentication Bypass
Weaknesses CWE-73
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 30, 2026, 5:20 PM
Reserved
Aug 10, 2026, 3:14 PM
Status
Deferred
Published
Aug 13, 2026, 10:17 PM
Modified
Sep 30, 2026, 6:18 PM