HIGH CVSS 7.5
Published: 2026-06-10

CVE-2026-0270

paloaltonetworks cortex_xsoar Security Advisory (CVE-2026-0270)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-0270 impacting paloaltonetworks cortex_xsoar. Evaluated with CVSS Base Score of 7.5 (HIGH).

Original NVD Description

Source: NIST NVD
A path traversal vulnerability in Palo Alto Networks Cortex XSOAR engine software running on Linux allows an unauthenticated attacker on an adjacent network, with the ability to intercept and manipulate network response traffic via a man-in-the-middle (MITM) attack, to write arbitrary files to the host.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Adjacent (AV:A)
Requires shared subnet / local network access
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product paloaltonetworks / cortex_xsoar
Affected Versions *
Weakness Enumeration CWE-22

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2026-0270 impacting paloaltonetworks cortex_xsoar.

⚡ Nuclei Detection Template (YAML) cve-2026-0270.yaml
id: cve-2026-0270

info:
  name: paloaltonetworks cortex_xsoar - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2026-0270 affecting paloaltonetworks cortex_xsoar.
    Evaluation: A path traversal vulnerability in Palo Alto Networks Cortex XSOAR engine software running on Linux  allows an unauthenticated attacker on an adjacent ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-0270
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 7.5
    cve-id: CVE-2026-0270
    cwe-id: CWE-22
  tags: cve,cve-2026-0270,paloaltonetworks,cortex_xsoar,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "cortex_xsoar"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-0270.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-0270
# Target: paloaltonetworks cortex_xsoar | CVSS: 7.5 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-0270 (paloaltonetworks cortex_xsoar)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against paloaltonetworks cortex_xsoar scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2026-0270.sh
# Recommended Remediation & Patching Commands for CVE-2026-0270
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install cortex_xsoar 2>/dev/null || \
sudo dnf upgrade cortex_xsoar 2>/dev/null || \
sudo yum update cortex_xsoar

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i cortex_xsoar 2>/dev/null || rpm -qa | grep -i cortex_xsoar

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-0270 in paloaltonetworks cortex_xsoar?

Review vendor-specific security notices and update paloaltonetworks cortex_xsoar packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2026-0270?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2026-0270?

CVE-2026-0270 is classified with a CVSS 3.1 Base Score of 7.5 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.5
HIGH SEVERITY
CVE ID CVE-2026-0270
Weakness CWE-22
Vendor paloaltonetworks
Product cortex_xsoar
Published 2026-06-10
Vector CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H