Rapid7 Observed Exploitation of PAN-OS GlobalProtect Authentication Bypass Vulnerability (CVE-2026-0257)

Overview On May 13, 2026, Palo Alto Networks published a security advisory for CVE-2026-0257, a medium severity authentication bypass affecting PAN-OS and Prisma Access when a specific configuration is present. Successful exploitation of this vulnerability allows a remote unauthenticated attacker...

CVE-2026-0257

creationtimestamp| type| source ---|---|--- 2026-05-13 19:03:33+00:00| seen| https://bsky.app/profile/ripjyr.bsky.social/post/3mlqyl5x3ps2t 2026-05-13 20:00:00+00:00| seen| https://www.hkcert.org/security-bulletin/palo-alto-products-multiple-vulnerabilities20260514 2026-05-13 21:00:00+00:00| seen...

CVE-2026-0257

CVE-2026-0257 affects Palo Alto Networks PAN-OS GlobalProtect Portal and GlobalProtect Gateway (not Panorama/Cloud NGFW). The vulnerability is an authentication bypass (CWE-565) that can allow an unauthenticated attacker to bypass security restrictions and establish an unauthorized VPN connection...