7.4High
Paloaltonetworks Globalprotect
CVE-2026-0296
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.
What this means for your business
- It affects Paloaltonetworks Globalprotect. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.1% chance of attack attempts being seen in the next 30 days, ranking above 3% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Paloaltonetworks Globalprotect, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 7.4 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N- CVSS v4
- 4.5
- Weakness
- CWE-295
- Assigned by
- psirt@paloaltonetworks.com
Dates
- Published
- 2026-08-13
- Last modified
- 2026-09-10
- Sources
- NVD
Affected products
- Paloaltonetworks Globalprotect6.0.0 - 6.0.15, 6.2.0 - 6.2.8, 6.2.0 - 6.2.9, 6.3.0 - 6.3.3, all versions, 6.2.8, 6.3.3
As listed in the NVD configuration data. Not a statement about your estate.