CVE-2026-0296 GlobalProtect App: Improper Certificate Validation Bypass Vulnerability
An unauthenticated attacker with man-in-the-middle access can intercept and modify GlobalProtect app communications on Windows, macOS, and Linux.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-0296?
CVE-2026-0296 is a medium-severity vulnerability in Palo Alto Networks GlobalProtect App, published on 13 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-295
Which versions are affected by CVE-2026-0296?
It affects 1 product.
Products include Paloaltonetworks Globalprotect.
How do I fix CVE-2026-0296?
No fix has been published for CVE-2026-0296 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0296 being exploited?
There is no known exploitation of CVE-2026-0296 in the wild and no public exploit code.
Other vulnerabilities in Palo Alto Networks GlobalProtect App
- CVE-2025-4232 GlobalProtect: Authenticated Code Injection Through Wildcard on macOS
- CVE-2021-3057 GlobalProtect App: Buffer Overflow Vulnerability When Connecting to Portal or Gateway
- CVE-2023-0009 GlobalProtect App: Local Privilege Escalation (PE) Vulnerability
- CVE-2022-0016 GlobalProtect App: Privilege Escalation Vulnerability When Using Connect Before Logon
- CVE-2025-0120 GlobalProtect App: Local Privilege Escalation (PE) Vulnerability
Sources
Also known as GHSA-grg9-vqcx-frvj.