PT-2026-52542 · Haiwen · Seahub

George Chen · Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-56768

NVD

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-56768

Affected Products

Seahub

References · 6

• https://github.com/haiwen/seahub/commit/b609949cf64ed6a15708d0fb5ea9c179962e23cc · Patch
• https://github.com/haiwen/seahub/commit/162cddae0831188d02bb8d451dc2193e197dcc57 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-56768 · Security Note
• https://plus.seafile.com/wiki/publish/seafile-wiki/v5D5 · Note
• https://vulncheck.com/advisories/seahub-authentication-bypass-in-sharelinkziptaskview-get-method · Note
• https://github.com/haiwen/seahub/issues/9050 · Note