{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.5.3"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4805a89cb8038ed2f26d25866f1c53aa61bef3b5"
            }
          ],
          "repo": "https://github.com/icewhaletech/zimaos",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-vqqj-f979-8c8m"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28798.json"
  },
  "details": "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.",
  "id": "CVE-2026-28798",
  "modified": "2026-07-15T01:49:01.882646027Z",
  "published": "2026-04-03T20:00:48.045Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/IceWhaleTech/ZimaOS/releases/tag/1.5.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28798.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqqj-f979-8c8m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28798"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Arbitrary internal service access via /v1/sys/proxy when Cloudflare Tunnel is enabled on ZimaOS"
}