Vulnerability · Published May 13, 2026 · Assigned by palo_alto

CVE-2026-0237Prisma Browser: Improperly Restricted Automation Bridge Allows Security Bypass

High 7.3

In plain English

A high-severity security flaw in Prisma Browser 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 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 4.0)7.3High

Exploit odds (30 days)0.1%top 95.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An improper protection of alternate path vulnerability in Palo Alto Networks Prisma® Browser on macOS fails to properly restrict access to an internal automation bridge. This allows a locally authenticated non-admin user to leverage an exposed communication channel to send unauthorized commands to the browser, bypassing security controls.

Affected products (as reported)

Vendor	Product	Versions
Palo Alto Networks	Prisma Browser	0 – before 146.16.6.165

Weakness: CWE-424 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:M/U:Amber

References

https://security.paloaltonetworks.com/CVE-2026-0237 vendor-advisory