{"cve":"CVE-2026-53656","nvd":{"published":"2026-08-21T21:17:00.113","modified":"2026-10-12T16:10:00.220","status":"Awaiting Analysis","description":"FiftyOne is an open-source platform for refining high-quality datasets and visual AI models. Prior to 1.17.0, the FiftyOne App/API server in fiftyone/server/app.py and the /media route in fiftyone/server/routes/media.py unconditionally return Access-Control-Allow-Origin: *. Because the embedded server is local and unauthenticated, a malicious website visited by the user can read cross-origin responses. The /media endpoint accepts a filesystem path, allowing a drive-by page to read files accessible to the server process and exfiltrate them without additional clicks. The allowed_origins configuration and FIFTYONE_ALLOWED_ORIGINS environment variable now make cross-origin access explicit, while the default policy is same-origin. This issue is fixed in version 1.17.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","score":6.3},"cwes":["CWE-346","CWE-942"],"references":["https://github.com/voxel51/fiftyone/commit/6c4fa1b27bf53e4ba567742ffd20d033af7b9e64","https://github.com/voxel51/fiftyone/commit/7c5b92eec5c7c0210c0c8134351ced77d2800ae0","https://github.com/voxel51/fiftyone/releases/tag/v1.17.0","https://github.com/voxel51/fiftyone/security/advisories/GHSA-q78p-hj9h-5466"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-53656","score":0.00119,"percentile":0.01758,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-q78p-hj9h-5466","url":"https://osv.dev/vulnerability/GHSA-q78p-hj9h-5466","summary":"FiftyOne App server uses wildcard CORS (Access-Control-Allow-Origin: *), enabling cross-origin reads of local server data","modified":"2026-07-23T15:11:30.439750388Z","packages":[{"ecosystem":"PyPI","name":"fiftyone","purl":"pkg:pypi/fiftyone","ranges":["<1.17.0"],"fixed":["1.17.0"]}]},{"id":"PYSEC-2026-3465","url":"https://osv.dev/vulnerability/PYSEC-2026-3465","summary":"FiftyOne App server uses wildcard CORS (Access-Control-Allow-Origin: *), enabling cross-origin reads of local server data","modified":"2026-07-23T15:00:12.485654918Z","packages":[{"ecosystem":"PyPI","name":"fiftyone","purl":"pkg:pypi/fiftyone","ranges":["<1.17.0"],"fixed":["1.17.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}