CVE-2026-0249 GlobalProtect App: Certificate Validation Bypass Vulnerabilities

What is CVE-2026-0249?

CVE-2026-0249 is a medium-severity vulnerability in Palo Alto Networks GlobalProtect App, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect™ app enables an attacker to intercept encrypted communications and potentially compromise the endpoint. This can enable a local non-administrative operating system user or an attacker on the same subnet to redirect traffic to an unauthorized server and facilitate the installation of malicious software.

The GlobalProtect app on Linux, Windows, iOS and GlobalProtect UWP app are not affected.

Weakness: CWE-295

Which versions are affected by CVE-2026-0249?

It affects 1 product.

Products include Paloaltonetworks Globalprotect.

How do I fix CVE-2026-0249?

No fix has been published for CVE-2026-0249 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-0249 being exploited?

There is no known exploitation of CVE-2026-0249 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 High 8.5
• CVE-2021-3057 GlobalProtect App: Buffer Overflow Vulnerability When Connecting to Portal or Gateway High 8.1
• CVE-2023-0009 GlobalProtect App: Local Privilege Escalation (PE) Vulnerability High 7.8
• CVE-2022-0016 GlobalProtect App: Privilege Escalation Vulnerability When Using Connect Before Logon High 7.4
• CVE-2025-0120 GlobalProtect App: Local Privilege Escalation (PE) Vulnerability High 7.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-h3p8-5g8q-vm3h.