Description
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.
Published: 2026-08-18
Score: 2.7 Low
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

File Browser versions prior to 2.63.17 serialize the link storage struct directly in the share API handlers, revealing the password_hash and bypass token for each share. An administrator or any actor with administrator privileges can retrieve these secrets for all users’ shares, enabling offline password cracking and direct access to protected shares without requiring the original passwords.

Affected Systems

The vulnerability affects the open‑source file browsing application File Browser, specifically all releases before version 2.63.17. Users running older versions are at risk of having their share credentials exposed.

Risk and Exploitability

The CVSS score of 2.7 indicates a low severity issue and the EPSS score is not available, implying little to no publicly documented exploitation. The vulnerability requires administrative access to the application; it is therefore unlikely to be exploited by unauthenticated attackers. The risk is moderate in environments where administrators are compromised or weakly protected, but overall it does not pose an immediate high‑risk threat to the general public.

Generated by OpenCVE AI on August 18, 2026 at 16:33 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade File Browser to version 2.63.17 or later to prevent serialization of password_hash and bypass token
  • Restrict administrative access to the API endpoints /api/share and /api/shares or use network segmentation to limit exposure
  • If an upgrade is not immediately possible, revoke or regenerate existing share tokens and passwords to invalidate compromised credentials

Generated by OpenCVE AI on August 18, 2026 at 16:33 UTC.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-833g-cqhp-h72j File Browser: Share API exposes the password hash and bypass token
History

Tue, 18 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Description 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.
Title File Browser: Share API exposes the password hash and bypass token
Weaknesses CWE-200
CWE-522
References
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-18T17:46:42.863Z

Reserved: 2026-07-14T20:22:04.395Z

Link: CVE-2026-62684

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-18T16:18:11.797

Modified: 2026-08-18T16:18:11.797

Link: CVE-2026-62684

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T16:45:04Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor

  • CWE-522

    Insufficiently Protected Credentials