CVE-2025-53893

File Browser Vulnerable to Uncontrolled Memory Consumption Due to Oversized File Processing

Published Jul 15, 2025 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-21460 File Browser's Uncontrolled Memory Consumption vulnerability can enable DoS attack due to oversized file processing
Github GHSA Github GHSA GHSA-7xqm-7738-642x File Browser's Uncontrolled Memory Consumption vulnerability can enable DoS attack due to oversized file processing
History
Type Values Removed Values Added
CPEs cpe:2.3:a:filebrowser:filebrowser:2.38.0:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00042}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title File Browser Vulnerable to Uncontrolled Memory Consumption Due to Oversized File Processing
Weaknesses CWE-400
CWE-789
References
Metrics cvssV4_0

{'score': 7.7, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 15, 2025, 6:44 PM
Reserved
Jul 11, 2025, 7:05 PM
Status
Analyzed
Published
Jul 15, 2025, 6:15 PM
Modified
Jun 17, 2026, 9:39 AM