CVE-2026-36829

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and bypass of authentication.

Published 2026-05-19. Last modified 2026-07-24.