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Palo Alto Networks Security AdvisoriesCVE-2026-0296

CVE-2026-0296: GlobalProtect App: Improper Certificate Validation Bypass Vulnerability

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.

Read the vendor bulletin Get alerts for GlobalProtect App
7.4CVSS out of 10High severity
Scope

What the vendor says is affected

  • GlobalProtect App
  • GlobalProtect App 6.3
  • GlobalProtect App 6.2
  • GlobalProtect App 6.0

Versions the vendor lists as fixed

  • GlobalProtect App 6.3 >= 6.3.3-h15 on Linux (ETA: 09/17), >= 6.3.3-h14 (6.3.3-1121) on macOS, >= 6.3.3-h14 (6.3.3-1121) on Windows
  • GlobalProtect App 6.2 None on Linux, >= 6.2.8-h13 (6.2.8-1045) on macOS, >= 6.2.8-h13 (6.2.8-1045) on Windows
  • GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 10/29), >= 6.0.15 on macOS (ETA: 10/29), >= 6.0.15 on Windows (ETA: 10/29)
  • GlobalProtect App All on iOS, All on Android, All on Chrome OS
Next step

What the vendor recommends

VERSION MINOR VERSION SUGGESTED SOLUTION GlobalProtect App 6.3/6.2 on Linux 6.2.0 through 6.3.3-h14 Upgrade to 6.3.3-h15 or later. GlobalProtect App 6.0 on Linux 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3 on macOS 6.3.0 through 6.3.3-h13 Upgrade to 6.3.3-h14 (6.3.3-1121) or later. GlobalProtect App 6.2 on macOS 6.2.0 through 6.2.8-h12 Upgrade to 6.2.8-h13 (6.2.8-1045) or later. GlobalProtect App 6.0 on macOS 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3 on Windows 6.3.0 through 6.3.3-h13 Upgrade to 6.3.3-h14 (6.3.3-1121) or later. GlobalProtect App 6.2 on Windows 6.2.0 through 6.2.8-h12 Upgrade to 6.2.8-h13 (6.2.8-1045) or later. GlobalProtect App 6.0 on Windows 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App on iOS No action needed. GlobalProtect App on Android No action needed. GlobalProtect App on Chrome OS No action needed.

Review the complete instructions on the vendor's site
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added fixed versions: GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 10/29), >= 6.0.15 on macOS (ETA: 10/29), >= 6.0.15 on Windows (ETA: 10/29), GlobalProtect App 6.3 >= 6.3.3-h15 on Linux (ETA: 09/17), >= 6.3.3-h14 (6.3.3-1121) on macOS, >=....
    • Removed fixed versions: GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 08/31), >= 6.0.15 on macOS (ETA: 08/31), >= 6.0.15 on Windows (ETA: 08/31), GlobalProtect App 6.3 >= 6.3.3-h15 on Linux (ETA: 08/28), >= 6.3.3-h14 (6.3.3-1121) on macOS, >=....
Timeline

When this advisory changed

  1. Published by Palo Alto Networks

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Updated by Palo Alto Networks

    The vendor changed the advisory after it was first published.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-0296View CVSS, KEV, EPSS, and threat context
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