HIGH CVSS 7.1
Published: 2026-04-23

CVE-2026-41347

openclaw openclaw Security Advisory (CVE-2026-41347)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-41347 impacting openclaw openclaw. Evaluated with CVSS Base Score of 7.1 (HIGH).

Original NVD Description

Source: NIST NVD
OpenClaw before 2026.3.31 lacks browser-origin validation in HTTP operator endpoints when operating in trusted-proxy mode, allowing cross-site request forgery attacks. Attackers can exploit this by sending malicious requests from a browser in trusted-proxy deployments to perform unauthorized actions on HTTP operator endpoints.

📊 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
Required (UI:R)
User must click or open resource
Scope
Changed (S:C)
Impacts components beyond caller authority
Confidentiality
Low (C:L)
Partial information leakage
Integrity
Low (I:L)
Partial data modification possible
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product openclaw / openclaw
Affected Versions *
Weakness Enumeration CWE-352

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-2026-41347 impacting openclaw openclaw.

⚡ Nuclei Detection Template (YAML) cve-2026-41347.yaml
id: cve-2026-41347

info:
  name: openclaw openclaw - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2026-41347 affecting openclaw openclaw.
    Evaluation: OpenClaw before 2026.3.31 lacks browser-origin validation in HTTP operator endpoints when operating in trusted-proxy mode, allowing cross-site request...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-41347
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
    cvss-score: 7.1
    cve-id: CVE-2026-41347
    cwe-id: CWE-352
  tags: cve,cve-2026-41347,openclaw,openclaw,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "openclaw"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-41347.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-41347
# Target: openclaw openclaw | CVSS: 7.1 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-41347 (openclaw openclaw)...")
    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 openclaw openclaw 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-2026-41347.sh
# Recommended Remediation & Patching Commands for CVE-2026-41347
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install openclaw 2>/dev/null || \
sudo dnf upgrade openclaw 2>/dev/null || \
sudo yum update openclaw

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

# 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.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-41347 in openclaw openclaw?

Review vendor-specific security notices and update openclaw openclaw 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-2026-41347?

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-2026-41347?

CVE-2026-41347 is classified with a CVSS 3.1 Base Score of 7.1 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.1
HIGH SEVERITY
CVE ID CVE-2026-41347
Weakness CWE-352
Vendor openclaw
Product openclaw
Published 2026-04-23
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L