jon4hz jellysweep up to 0.12.x API Endpoint /api/images/cache server-side request forgery

Summaryinfo

A vulnerability, which was classified as critical, was found in jon4hz jellysweep up to 0.12.x. The affected element is an unknown function of the file /api/images/cache of the component API Endpoint. Executing a manipulation can lead to server-side request forgery. This vulnerability is registered as CVE-2025-64178. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in jon4hz jellysweep up to 0.12.x. This vulnerability affects some unknown functionality of the file /api/images/cache of the component API Endpoint. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect availability. CVE summarizes:

Jellysweep is a cleanup tool for the Jellyfin media server. In versions 0.12.1 and below, /api/images/cache, used to download media posters from the server, accepted a URL parameter that was directly passed to the cache package, which downloaded the poster from this URL. This URL parameter can be used to make the Jellysweep server download arbitrary content. The API endpoint can only be used by authenticated users. This issue is fixed in version 0.13.0.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-64178 since 10/28/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

Upgrading to version 0.13.0 eliminates this vulnerability. Applying the patch 17466312510966418aea941e4944229856d55101 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• jon4hz

Name

• jellysweep

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12

License

• open-source

Website

• Product: https://github.com/jon4hz/jellysweep/

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