What’s Vulnerable › Vulnerabilities

CVE-2026-0276: Cortex XDR Broker VM: Privilege Escalation (PE) Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-09 · updated 2026-10-25
• Weakness: CWE-269

Description

A privilege escalation vulnerability in Palo Alto Networks Cortex® XDR Broker VM enables a locally authenticated user to perform actions as the root user.

Affected products

• Palo Alto Networks Cortex XDR Broker VM: from 20.0.96 before 31.0.58 — fixed in 31.0.58
• Palo Alto Networks Cortex XDR Broker VM: from 20.0.96 before 31.0.58 — fixed in 31.0.58

How to fix

Upgrade to a fixed version: Palo Alto Networks Cortex XDR Broker VM 31.0.58; Palo Alto Networks Cortex XDR Broker VM 31.0.58. Check the vendor advisory for mitigations.

References

• https://security.paloaltonetworks.com/CVE-2026-0276

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