{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.8.3"
              },
              {
                "fixed": "2.8.3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "a8842c31fe9f2a205919ace9993c8c30fa61d6d0"
            }
          ],
          "repo": "https://github.com/linuxserver/heimdall",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107449.json"
  },
  "details": "linuxserver Heimdall through 2.8.3 applies its SafeUrlFetcher SSRF protection mechanism only to ItemController; the enhanced-application test and live-stats requests occur via SupportedApps::execute(), a GuzzleHttp client that lacks IP address restrictions. In some realistic installations, the POST /test_config (and GET /get_stats) endpoints are accessible through CSRF, and thus an unauthenticated attacker can force the server to send requests to arbitrary internal hosts and ports (including 169.254.169.254) and read a status/port oracle in addition to partial response data.",
  "id": "CVE-2026-107449",
  "modified": "2026-10-10T02:31:04.249385557Z",
  "published": "2026-10-08T04:28:17.619Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/linuxserver/Heimdall/blob/9ad5864a80d7025db1e6eab8eb2981c165b0ddff/app/SupportedApps.php"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107449.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107449"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/linuxserver/Heimdall"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/kashishtopi/heimdall-unauth-ssrf"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}