haiwen seahub up to 13.0.22 GET Endpoint /api/v2 authorization

Summaryinfo

A vulnerability categorized as critical has been discovered in haiwen seahub up to 13.0.22. The impacted element is an unknown function of the file /api/v2 of the component GET Endpoint. Such manipulation leads to authorization. This vulnerability is listed as CVE-2026-56768. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in haiwen seahub up to 13.0.22 and classified as critical. Affected by this issue is an unknown functionality of the file /api/v2 of the component GET Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was presented by George Chen as 9050. The advisory is available at plus.seafile.com. This vulnerability is handled as CVE-2026-56768 since 06/22/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 13.0.23 eliminates this vulnerability. Applying the patch 162cddae0831188d02bb8d451dc2193e197dcc57 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• haiwen

Name

• seahub

Version

• 13.0.0
• 13.0.1
• 13.0.2
• 13.0.3
• 13.0.4
• 13.0.5
• 13.0.6
• 13.0.7
• 13.0.8
• 13.0.9
• 13.0.10
• 13.0.11
• 13.0.12
• 13.0.13
• 13.0.14
• 13.0.15
• 13.0.16
• 13.0.17
• 13.0.18
• 13.0.19
• 13.0.20
• 13.0.21
• 13.0.22

License

• open-source

Website

• Product: https://github.com/haiwen/seahub/

CPE 2.3info

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CPE 2.2info

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