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TI-2026-44790 Aliases CVE-2026-62684GHSA-833g-cqhp-h72j

File Browser: Share API exposes the password hash and bypass token

Priority LOW 14CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, the Link storage struct is serialized directly by sharePostHandler, shareListHandler, and shareGetsHandler through renderJSON, causing POST /api/share/{path} and GET /api/shares to expose password_hash and the bypass token, while an administrator can retrieve these secrets for every user's shares, enabling offline password cracking and direct access to protected shares. This issue is fixed in version 2.63.17.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00432 37th percentileScored 2026-11-07
Fix Fixed filebrowser (filebrowser): 2.63.17github.com/filebrowser/filebrowser/v2 (Go): 2.63.17

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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 2.63.172.63.17Patch availableCNA
—github.com/filebrowser/filebrowser/v2 (Go)before 2.63.172.63.17Patch availableGHSA-833g-cqhp-h72j
  • filebrowser Vendorfilebrowser Affected before 2.63.17 Fixed in 2.63.17 Patch available CNA
  • github.com/filebrowser/filebrowser/v2 (Go) Vendor— Affected before 2.63.17 Fixed in 2.63.17 Patch available GHSA-833g-cqhp-h72j

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*——filebrowser
  • cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:* Versions — — ·filebrowser

Remediation

  • Fix · CNA filebrowser (filebrowser) Fixed in 2.63.17
  • Fix · GHSA-833g-cqhp-h72j github.com/filebrowser/filebrowser/v2 (Go) Fixed in 2.63.17 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-62684
  2. 2026-10-03 Alias added: GHSA-833g-cqhp-h72j

References

Other 4

  • TI-2026-25251 File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin CVSS 4.0CRITICAL 10.0
  • TI-2026-51065 filebrowser through 2.63.16 Privilege Escalation via Signup CVSS 4.0CRITICAL 9.3
  • TI-2026-39018 File Browser: Authentication Bypass via Proxy Auth Header Forgery CVSS 3.1CRITICAL 9.1
  • TI-2026-39017 File Browser: Command Injection via Authentication Hook Shell Substitution (Pre-Authentication RCE) CVSS 4.0CRITICAL 9.3
  • 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
See all 64 →

Sources

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