PALO ALTO: 📅 Published on May 28, 2026

PALO ALTO Security Advisory

Published Date: May 28, 2026

CVE: CVE-2026-0265

Advisory Summary

🔔 HIGH SEVERITY ALERT: PAN-OS Authentication Bypass Vulnerability (CVE-2026-0265)

Palo Alto Networks has disclosed a critical authentication bypass vulnerability in PAN-OS when the Cloud Authentication Service (CAS) is enabled. This flaw could allow attackers to bypass standard authentication controls, potentially gaining unauthorized access to network security management interfaces. Given the high severity rating, organizations using PAN-OS with CAS enabled should prioritize immediate patching to mitigate exploitation risks. This vulnerability underscores the importance of maintaining updated security controls in evolving cloud-integrated environments to safeguard critical infrastructure.

Reference: Vendor Advisory