Voxel51 FiftyOne up to 1.16.9 Media Route fiftyone/server/app.py cross-domain policy

Summaryinfo

A vulnerability identified as problematic has been detected in Voxel51 FiftyOne up to 1.16.9. This impacts an unknown function of the file fiftyone/server/app.py of the component Media Route. This manipulation causes cross-domain policy. The identification of this vulnerability is CVE-2026-53656. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Voxel51 FiftyOne up to 1.16.9 and classified as problematic. Affected by this vulnerability is some unknown functionality of the file fiftyone/server/app.py of the component Media Route. The manipulation with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-53656 since 06/09/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 1.17.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Voxel51

Name

• FiftyOne

Version

• 1.16.0
• 1.16.1
• 1.16.2
• 1.16.3
• 1.16.4
• 1.16.5
• 1.16.6
• 1.16.7
• 1.16.8
• 1.16.9

Website

• Product: https://github.com/voxel51/fiftyone/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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