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Vulnerability · Published Aug 13, 2026 · Assigned by palo_alto

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

Medium 4.5

In plain English

A medium-severity improper certificate validation in GlobalProtect App from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 4.0)4.5Medium
Exploit odds (30 days)0.3%top 82.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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 products (as reported)

VendorProductVersions
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h156.2.06.0.0 – before 6.0.15
Palo Alto Networks GlobalProtect App 6.3.0 – before 6.3.3-h146.2.0 – before 6.2.8-h136.0.0 – before 6.0.15
Palo Alto Networks GlobalProtect App see references

Weakness: CWE-295 · Vector: 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/AU:N/R:U/V:D/RE:M/U:Amber

References