CVE-2026-72842

critical · 9.4

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.

9.4

CVSS

0.6%

EPSS (exploit prob.)

47th

EPSS percentile

2026-08-13

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-73

References

https://github.com/openwrt/luci/security/advisories/GHSA-jf59-v86x-fwf2
https://www.vulncheck.com/advisories/openwrt-luci-app-lxc-acl-inconsistency-authentication-bypass

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-72842