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Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

Palo Alto NetworksCVE-2026-0296

Palo Alto Networks GlobalProtect App: improper certificate validation

Palo Alto Networks

CVE-2026-0296 · Published Aug 13, 2026 · updated Sep 10, 2026

Medium4.5
Fix: upgrade to 6.3.3-h15 or later (4 fixed versions below)
Palo Alto Networks advisory

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.

Affected versions

PackageAffectedFixed in
GlobalProtect App
Product
>= 6.3.0, < 6.3.3-h156.3.3-h15
<= 6.2.0No fix yet
>= 6.0.0, < 6.0.156.0.15
>= 6.3.0, < 6.3.3-h146.3.3-h14
>= 6.2.0, < 6.2.8-h136.2.8-h13
>= 6.0.0, < 6.0.156.0.15
Details and references
CVSS 4.0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-295

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