CVE-2026-56768: Missing Authorization in haiwen seahub
Seahub before 13.0.23 does not enforce SHARE_LINK_LOGIN_REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication. Attackers with a folder share-link token can call the GET endpoint to obtain a fileserver zip token and download entire shared directory trees.
AI Analysis
Technical Summary
CVE-2026-56768 is a missing authorization vulnerability in haiwen's Seahub product before version 13.0.23. The vulnerability arises because the GET /api/v2.1/share-link-zip-task/ endpoint does not enforce the SHARE_LINK_LOGIN_REQUIRED setting, allowing attackers with a valid folder share-link token to bypass authentication. This enables them to retrieve a fileserver zip token and download entire shared directory trees without proper authorization.
Potential Impact
An attacker with a folder share-link token can bypass authentication controls and download entire shared directory trees from the affected Seahub instance. This could lead to unauthorized data disclosure of shared files and directories.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions prior to 13.0.23, upgrading to version 13.0.23 or later is likely to address the issue once an official fix is released. Until then, restrict access to share-link tokens and monitor for unauthorized use.
CVE-2026-56768: Missing Authorization in haiwen seahub
Description
Seahub before 13.0.23 does not enforce SHARE_LINK_LOGIN_REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication. Attackers with a folder share-link token can call the GET endpoint to obtain a fileserver zip token and download entire shared directory trees.
CVSS v4.0
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-56768 is a missing authorization vulnerability in haiwen's Seahub product before version 13.0.23. The vulnerability arises because the GET /api/v2.1/share-link-zip-task/ endpoint does not enforce the SHARE_LINK_LOGIN_REQUIRED setting, allowing attackers with a valid folder share-link token to bypass authentication. This enables them to retrieve a fileserver zip token and download entire shared directory trees without proper authorization.
Potential Impact
An attacker with a folder share-link token can bypass authentication controls and download entire shared directory trees from the affected Seahub instance. This could lead to unauthorized data disclosure of shared files and directories.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions prior to 13.0.23, upgrading to version 13.0.23 or later is likely to address the issue once an official fix is released. Until then, restrict access to share-link tokens and monitor for unauthorized use.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-22T21:55:17.942Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3d73fc4853345fc14dfa80
Added to database: 06/25/2026, 18:31:24 UTC
Last enriched: 07/15/2026, 10:16:24 UTC
Last updated: 08/09/2026, 03:26:32 UTC
Views: 80
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