CVE-2026-72841: Openwrt Luci

Critical severity, CVSS 9.9. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Openwrt Luci: before 24.10.7 (fixed in 24.10.7); from 25.12.0, before 25.12.4 (fixed in 25.12.4)

Published 2026-08-13. Last modified 2026-09-30.