filebrowser 2.38.0 /files/{file-name} resource consumption

Summaryinfo

A vulnerability was found in filebrowser 2.38.0. It has been declared as problematic. This affects an unknown function of the file /files/{file-name}. The manipulation results in resource consumption. This vulnerability is cataloged as CVE-2025-53893. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in filebrowser 2.38.0. Affected is some unknown processing of the file /files/{file-name}. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename, and edit files. In version 2.38.0, a Denial of Service (DoS) vulnerability exists in the file processing logic when reading a file on endpoint `Filebrowser-Server-IP:PORT/files/{file-name}` . While the server correctly handles and stores uploaded files, it attempts to load the entire content into memory during read operations without size checks or resource limits. This allows an authenticated user to upload a large file and trigger uncontrolled memory consumption on read, potentially crashing the server and making it unresponsive. As of time of publication, no known patches are available.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-53893 since 07/11/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-21460). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• filebrowser

Version

• 2.38.0

Website

• Product: https://github.com/filebrowser/filebrowser/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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