HIGH CVSS 8.4
Published: 2026-04-20

CVE-2026-3518

progress connection_manager_for_objectscale Security Advisory (CVE-2026-3518)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-3518 impacting progress connection_manager_for_objectscale. Evaluated with CVSS Base Score of 8.4 (HIGH).

Original NVD Description

Source: NIST NVD
OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “All” permissions to execute arbitrary commands on the LoadMaster appliance by exploiting unsanitized input in the 'killsession' command

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Adjacent (AV:A)
Requires shared subnet / local network access
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
High (PR:H)
Administrative credentials required
User Interaction
None (UI:N)
Zero human interaction required
Scope
Changed (S:C)
Impacts components beyond caller authority
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 progress / connection_manager_for_objectscale
Affected Versions *
Weakness Enumeration CWE-77

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-2026-3518 impacting progress connection_manager_for_objectscale.

⚡ Nuclei Detection Template (YAML) cve-2026-3518.yaml
id: cve-2026-3518

info:
  name: progress connection_manager_for_objectscale - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2026-3518 affecting progress connection_manager_for_objectscale.
    Evaluation: OS Command Injection Remote Code Execution Vulnerability in API in Progress ADC Products allows an authenticated attacker with “All” permissions to ex...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-3518
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 8.4
    cve-id: CVE-2026-3518
    cwe-id: CWE-77
  tags: cve,cve-2026-3518,progress,connection_manager_for_ob,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "connection_manager_for_objectscale"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-3518.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-3518
# Target: progress connection_manager_for_objectscale | CVSS: 8.4 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-3518 (progress connection_manager_for_objectscale)...")
    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 progress connection_manager_for_objectscale 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-2026-3518.sh
# Recommended Remediation & Patching Commands for CVE-2026-3518
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install connection_manager_for_ob 2>/dev/null || \
sudo dnf upgrade connection_manager_for_ob 2>/dev/null || \
sudo yum update connection_manager_for_ob

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

# 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
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Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-3518 in progress connection_manager_for_objectscale?

Review vendor-specific security notices and update progress connection_manager_for_objectscale 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-2026-3518?

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-2026-3518?

CVE-2026-3518 is classified with a CVSS 3.1 Base Score of 8.4 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.4
HIGH SEVERITY
CVE ID CVE-2026-3518
Weakness CWE-77
Vendor progress
Product connection_manager_for_objectscale
Published 2026-04-20
Vector CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H