CRITICAL CVSS 9.1
Published: 2026-04-09

CVE-2026-34184

hydrosystem.poznan control_system Security Advisory (CVE-2026-34184)
โ†— Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-34184 impacting hydrosystem.poznan control_system. Evaluated with CVSS Base Score of 9.1 (CRITICAL).

Original NVD Description

Source: NIST NVD
AlanWeb SCADA does not enforce authorization for some directories. This allows an unauthorized attacker to read all files in these directories and even execute some of them. Critically the attacker could run PHP scripts directly on the connected database. This issue was fixed inย AlanWeb SCADA versionย 9.8.5

๐Ÿ“Š CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
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
None (A:N)
No system availability impact

๐ŸŽฏ Affected Versions Matrix

Affected Product hydrosystem.poznan / control_system
Affected Versions *
Weakness Enumeration CWE-862

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-2026-34184 impacting hydrosystem.poznan control_system.

โšก Nuclei Detection Template (YAML) cve-2026-34184.yaml
id: cve-2026-34184

info:
  name: hydrosystem.poznan control_system - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: critical
  description: |
    Automated signature & scanner for CVE-2026-34184 affecting hydrosystem.poznan control_system.
    Evaluation: AlanWeb SCADA does not enforce authorization for some directories. This allows an unauthorized attacker to read all files in these directories and eve...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-34184
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2026-34184
    cwe-id: CWE-862
  tags: cve,cve-2026-34184,hydrosystem.poznan,control_system,critical

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "control_system"
        part: body
๐Ÿ PoC Exploit & Verification Probe (Python 3) poc_cve-2026-34184.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-34184
# Target: hydrosystem.poznan control_system | CVSS: 9.1 (CRITICAL)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-34184 (hydrosystem.poznan control_system)...")
    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 hydrosystem.poznan control_system 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)
๐Ÿ›ก๏ธ Quick Patch & Remediation Script (Bash) patch_cve-2026-34184.sh
# Recommended Remediation & Patching Commands for CVE-2026-34184
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install control_system 2>/dev/null || \
sudo dnf upgrade control_system 2>/dev/null || \
sudo yum update control_system

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

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

๐Ÿ›ก๏ธ 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.
โš ๏ธ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

๐Ÿ”— Verified Technical References

Authorities
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Distributions
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โ“ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-34184 in hydrosystem.poznan control_system?

Review vendor-specific security notices and update hydrosystem.poznan control_system 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-2026-34184?

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-2026-34184?

CVE-2026-34184 is classified with a CVSS 3.1 Base Score of 9.1 (CRITICAL). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
9.1
CRITICAL SEVERITY
CVE ID CVE-2026-34184
Weakness CWE-862
Vendor hydrosystem.poznan
Product control_system
Published 2026-04-09
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N