CVE-2026-72842

Critical

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.

SeverityCritical

CVSS9.9

Exploit probability—

ProductOpenwrt Luci

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-73CWE-73

How to fix

Vendor advisories

github.com/openwrt/luci/security/advisories/GHSA-jf59-v86x-fwf2

Affected products

Product	Affected versions	Fixed in
openwrt luci	v ≤ 24.10.8, 25.12.0 ≤ v ≤ 25.12.5	—

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