Vulnerability · Published Jul 15, 2025 · Assigned by GitHub_M
CVE-2025-53893File Browser Vulnerable to Uncontrolled Memory Consumption Due to Oversized File Processing
High 7.7
In plain English
A high-severity uncontrolled resource consumption in filebrowser from filebrowser. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/filebrowser/filebrowser | no fix listed | GO-2025-3811 |
| Go | github.com/filebrowser/filebrowser/v2 | no fix listed | GHSA-7xqm-7738-642x |
| Go | github.com/filebrowser/filebrowser/v2 | no fix listed | GO-2025-3811 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| filebrowser | filebrowser | = 2.38.0 |
Weakness: CWE-400, CWE-789 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xqm-7738-642x x_refsource_CONFIRM
- https://github.com/filebrowser/filebrowser/issues/5294 x_refsource_MISC