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Palo Alto Networks Security AdvisoriesCVE-2026-0296

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

HighVendor CVSS 7.4 / 10 1 CVE Published Aug 12, 2026 at 4:00 PM UTC
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Summary

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.

Products covered

  • GlobalProtect App

  • GlobalProtect App 6.3

  • GlobalProtect App 6.2

  • GlobalProtect App 6.0

Remediation

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.

Vendor-listed fixes

  • 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

CVEs in this advisory 1

CVE-2026-0296
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, >=....

Updates

  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.

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