What is CVE-2026-56768?

CVE-2026-56768 is a high-severity vulnerability in Haiwen Seahub, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-06-25.

How severe is CVE-2026-56768?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Haiwen Seahub

CVE-2026-56768

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…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Haiwen Seahub — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56768?: CVE-2026-56768 is a high-severity vulnerability in Haiwen Seahub, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-06-25.
How severe is CVE-2026-56768?: High severity. CVSS v3 base score is 8.8 out of 10.