MEDIUM CVSS 4.4
Published: 2026-06-10

CVE-2026-0268

paloaltonetworks prisma_access_agent Security Advisory (CVE-2026-0268)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-0268 impacting paloaltonetworks prisma_access_agent. Evaluated with CVSS Base Score of 4.4 (MEDIUM).

Original NVD Description

Source: NIST NVD
A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tunnel. This does not impact Prisma Access Agent on Windows, macOS, iOS, Android, or ChromeOS.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product paloaltonetworks / prisma_access_agent
Affected Versions *
Weakness Enumeration CWE-424

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-2026-0268 impacting paloaltonetworks prisma_access_agent.

⚡ Nuclei Detection Template (YAML) cve-2026-0268.yaml
id: cve-2026-0268

info:
  name: paloaltonetworks prisma_access_agent - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-0268 affecting paloaltonetworks prisma_access_agent.
    Evaluation: A security control bypass vulnerability in Prisma Access Agent for Linux allows a local attacker to route network traffic outside the VPN tunnel.



T...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-0268
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
    cvss-score: 4.4
    cve-id: CVE-2026-0268
    cwe-id: CWE-424
  tags: cve,cve-2026-0268,paloaltonetworks,prisma_access_agent,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "prisma_access_agent"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-0268.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-0268
# Target: paloaltonetworks prisma_access_agent | CVSS: 4.4 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-0268 (paloaltonetworks prisma_access_agent)...")
    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 prisma_access_agent 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-2026-0268.sh
# Recommended Remediation & Patching Commands for CVE-2026-0268
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install prisma_access_agent 2>/dev/null || \
sudo dnf upgrade prisma_access_agent 2>/dev/null || \
sudo yum update prisma_access_agent

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

# 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

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-0268 in paloaltonetworks prisma_access_agent?

Review vendor-specific security notices and update paloaltonetworks prisma_access_agent 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-2026-0268?

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-2026-0268?

CVE-2026-0268 is classified with a CVSS 3.1 Base Score of 4.4 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.4
MEDIUM SEVERITY
CVE ID CVE-2026-0268
Weakness CWE-424
Vendor paloaltonetworks
Product prisma_access_agent
Published 2026-06-10
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N