CVE-2026-0296 PUBLISHED

GlobalProtect App: Improper Certificate Validation Bypass Vulnerability

Assigner: palo_alto
Reserved: 03.11.2025 Published: 13.08.2026 Updated: 13.08.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 4.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Palo Alto Networks
Product	GlobalProtect App
Versions	Default: unaffected affected from 6.3.0 to 6.3.3-h15 (excl.) Version 6.2.0 is affected affected from 6.0.0 to 6.0.15 (excl.)

Vendor	Palo Alto Networks
Product	GlobalProtect App
Versions	Default: unaffected affected from 6.3.0 to 6.3.3-h14 (excl.) affected from 6.2.0 to 6.2.8-h13 (excl.) affected from 6.0.0 to 6.0.15 (excl.)

Vendor	Palo Alto Networks
Product	GlobalProtect App
Versions	Default: unaffected Version All is unaffected

Exploits

Palo Alto Networks is not aware of any malicious exploitation of this issue.

Credits

our internal security research teams finder

References

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

Problem Types

CWE-295 Improper Certificate Validation CWE

Impacts

CAPEC-94 Man in the Middle Attack