CVE-2026-0296

GlobalProtect App: Improper Certificate Validation Bypass Vulnerability

State: Published
Severity: 4.5 Medium
Published: Aug 13, 2026
Updated: Aug 13, 2026
Reserved: Nov 3, 2025

Description

Improper certificate validation vulnerabilities in Palo Alto Networks GlobalProtect™ app enable an unauthenticated attacker with man-in-the-middle (MitM) access to intercept and modify application communications. VPN tunnel traffic is not impacted.

The GlobalProtect app on iOS, Android, and Chrome OS is not affected.

Scores

CVSS	Score	Vector	Source
4.0	4.5 Medium	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber	palo_alto

Weaknesses

CWE-295 Improper Certificate Validation

Affected Products

Product	Versions
GlobalProtect AppPalo Alto Networks	6.3.0 to before 6.3.3-h15Affectedfrom 6.3.3-h15Not affected 6.2.0Affected 6.0.0 to before 6.0.15Affectedfrom 6.0.15Not affected
GlobalProtect AppPalo Alto Networks	6.3.0 to before 6.3.3-h14Affectedfrom 6.3.3-h14Not affected 6.2.0 to before 6.2.8-h13Affectedfrom 6.2.8-h13Not affected 6.0.0 to before 6.0.15Affectedfrom 6.0.15Not affected
GlobalProtect AppPalo Alto Networks	AllNot affected

References

https://security.paloaltonetworks.com/CVE-2026-0296vendor-advisory

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