CVE-2026-72841

Critical

Description

luci-app-openvpn fails to properly validate the instance_name2 parameter during file upload, allowing authenticated users to perform path traversal and write arbitrary files outside the intended directory. Attackers can upload malicious payloads to gain persistent root code execution by placing SSH keys in system directories accessible on reboot.

SeverityCritical

CVSS9.9

Exploit probability—

ProductOpenwrt Luci

PublishedAug 13, 2026

First seenAug 13, 2026

Weakness typeCWE-73CWE-73

How to fix

Update

openwrt luci24.10.7, 25.12.4 or later

Vendor advisories

github.com/openwrt/luci/security/advisories/GHSA-jjcx-c284-2qv8

Affected products

Product	Affected versions	Fixed in
openwrt luci	v < 24.10.7, 25.12.0 ≤ v < 25.12.4	24.10.7, 25.12.4

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