Vulnerabilities in pkg:pypi/fiftyone

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q78p-hj9h-5466",
  "modified" : "2026-07-15T21:57:29Z",
  "published" : "2026-07-15T21:57:29Z",
  "aliases" : [ "CVE-2026-53656" ],
  "summary" : "FiftyOne App server uses wildcard CORS (Access-Control-Allow-Origin: *), enabling cross-origin reads of local server data",
  "details" : "### Impact\n\nThe FiftyOne App/API server (`fiftyone/server/app.py`) and the `/media` route (`fiftyone/server/routes/media.py`) unconditionally set a permissive CORS header (`Access-Control-Allow-Origin: *`) on their responses. Because the embedded App server runs locally and is unauthenticated, this allows **any website a user visits to make cross-origin requests to that user's running FiftyOne server and read the responses**.\n\nCombined with the unauthenticated `/media` endpoint — which serves files from the local filesystem by path — the wildcard CORS policy turns a local-only file read into a **remotely exploitable, drive-by data exfiltration** vulnerability. A malicious web page can silently issue requests such as `http://localhost:5151/media?filepath=/etc/passwd` and read arbitrary files accessible to the server process (SSH keys, cloud credentials, `.env` files, dataset media, etc.), then exfiltrate them to an attacker-controlled endpoint.\n\nThe victim only needs to have a FiftyOne server running locally and visit a malicious page — no clicks or other interaction are required. Browsers that have shipped Private Network Access / local-network-access protections (e.g. Chromium 142+) mitigate this for some users, but Safari and Firefox do not yet, so the attack remains viable in common configurations.\n\n**Who is impacted:** any user running FiftyOne (the open-source, embedded App server) locally while also browsing the web.\n\n**Not affected:** media stored in cloud buckets, which is served via signed URLs on a separate origin.\n\n### Patches\n\nFixed in **FiftyOne 1.17.0**. The hard-coded `Access-Control-Allow-Origin: *` has been removed and the server now responds **same-origin only by default**, which covers local desktop usage and the supported notebook integrations (each served through a same-origin proxy or iframe).\n\nCross-origin access is now opt-in via a new `allowed_origins` config option (environment variable `FIFTYONE_ALLOWED_ORIGINS`), an explicit comma-separated list of trusted origins, e.g.:\n\n```shell\nexport FIFTYONE_ALLOWED_ORIGINS='https://app.example.com,http://localhost:3000'\n```\n\nThe literal value `*` restores the legacy wildcard behavior for users who explicitly require it and emits a warning.\n\n**Users should upgrade to FiftyOne 1.17.0 or later.**\n\n### Workarounds\n\nIn affected versions there is no configuration flag to disable the wildcard CORS header without upgrading. Until you can upgrade:\n\n- Do not run the FiftyOne App server while browsing untrusted websites.\n- Keep the App server bound to `localhost` (the default) and avoid exposing it on a network interface.\n- Use a browser that enforces Private Network Access protections.\n\n### Resources\n\n- OWASP A01:2025 – Broken Access Control: https://owasp.org/Top10/2025/A01_2025-Broken_Access_Control/",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "fiftyone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.17.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/voxel51/fiftyone/security/advisories/GHSA-q78p-hj9h-5466"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/voxel51/fiftyone/commit/7c5b92eec5c7c0210c0c8134351ced77d2800ae0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/voxel51/fiftyone"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/voxel51/fiftyone/releases/tag/v1.17.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-346", "CWE-942" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-15T21:57:29Z",
    "nvd_published_at" : null
  }
}