Read the docs
TI-2025-33768 Aliases CVE-2025-53893GHSA-7xqm-7738-642x

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

Priority HIGH 73CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00406 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
filebrowserfilebrowser= 2.38.0—No fix listedCNA
—github.com/filebrowser/filebrowser/v2 (Go)——No fix listedGHSA-7xqm-7738-642x
  • filebrowser Vendorfilebrowser Affected = 2.38.0 Fixed in — No fix listed CNA
  • github.com/filebrowser/filebrowser/v2 (Go) Vendor— Affected — Fixed in — No fix listed GHSA-7xqm-7738-642x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:filebrowser:filebrowser:2.38.0:*:*:*:*:*:*:*2.38.0Vulnerablefilebrowser
  • cpe:2.3:a:filebrowser:filebrowser:2.38.0:*:*:*:*:*:*:* Versions 2.38.0 Vulnerable ·filebrowser

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-53893
  2. 2026-10-03 Alias added: GHSA-7xqm-7738-642x

References

Exploit 1

Advisory 1

Other 2

  • TI-2026-25251 File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin CVSS 4.0CRITICAL 10.0
  • TI-2026-23305 File Browser: TUS Delete Endpoint Bypasses Delete Permission Check CVSS 3.1CRITICAL 9.1
  • TI-2026-26777 File Browser's Signup Grants Execution Permissions When Default Permissions Includes Execution CVSS 3.1CRITICAL 9.8
  • TI-2025-33000 File Browser vulnerable to command execution allowlist bypass CVSS 3.1HIGH 8.1
  • TI-2026-23759 FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse) CVSS 3.1HIGH 8.9
  • TI-2023-20699 A cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an… CVSS 3.1CRITICAL 9.0
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences