CVE-2026-56768: Haiwen Seahub

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Haiwen Seahub: before 13.0.23 (fixed in 13.0.23)

Published 2026-06-25. Last modified 2026-07-14.