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TI-2026-27709 Aliases CVE-2026-35606GHSA-67cg-cpj7-qgc9

File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check

Priority MEDIUM 57CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the resourceGetHandler in http/resource.go returns full text file content without checking the Perm.Download permission flag. All three other content-serving endpoints (/api/raw, /api/preview, /api/subtitle) correctly verify this permission before serving content. A user with download: false can read any text file within their scope through two bypass paths. This vulnerability is fixed in 2.63.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00352 29th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed filebrowser (filebrowser): 2.63.1github.com/filebrowser/filebrowser/v2 (Go): 2.63.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
filebrowserfilebrowserbefore 2.63.12.63.1Patch availableCNA
—github.com/filebrowser/filebrowser/v2 (Go)before 2.63.12.63.1Patch availableGHSA-67cg-cpj7-qgc9
  • filebrowser Vendorfilebrowser Affected before 2.63.1 Fixed in 2.63.1 Patch available CNA
  • github.com/filebrowser/filebrowser/v2 (Go) Vendor— Affected before 2.63.1 Fixed in 2.63.1 Patch available GHSA-67cg-cpj7-qgc9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*up to 2.63.0Vulnerablefilebrowser
  • cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:* Versions up to 2.63.0 Vulnerable ·filebrowser

Remediation

  • Fix · CNA filebrowser (filebrowser) Fixed in 2.63.1
  • Fix · GHSA-67cg-cpj7-qgc9 github.com/filebrowser/filebrowser/v2 (Go) Fixed in 2.63.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35606
  2. 2026-10-03 Alias added: GHSA-67cg-cpj7-qgc9

References

Exploit 1

Advisory 1

Other 1

  • 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