CVE-2021-3046: Palo Alto Networks PAN-OS

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

An improper authentication vulnerability exists in Palo Alto Networks PAN-OS software that enables a SAML authenticated attacker to impersonate any other user in the GlobalProtect Portal and GlobalProtect Gateway when they are configured to use SAML authentication. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. PAN-OS 10.1 versions are not impacted.

Affected products

• Palo Alto Networks PAN-OS: from 8.1.0, before 8.1.19 (fixed in 8.1.19); from 9.0.0, before 9.0.14 (fixed in 9.0.14); from 9.1.0, before 9.1.9 (fixed in 9.1.9); from 10.0.0, before 10.0.5 (fixed in 10.0.5)

Published 2021-08-11. Last modified 2026-06-17.