DataEase up to 2.10.25 Sharing Link /de2api/share/proxyInfo access control

Summaryinfo

A vulnerability was found in DataEase up to 2.10.25 and classified as critical. This impacts an unknown function of the file /de2api/share/proxyInfo of the component Sharing Link Module. The manipulation results in access control. This vulnerability is identified as CVE-2026-82879. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in DataEase up to 2.10.25. Affected is an unknown code of the file /de2api/share/proxyInfo of the component Sharing Link Module. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

DataEase before 2.10.26 contains multiple access control defects in the sharing link module. Tickets are not bound to the target share UUID, so a valid ticket issued for one share can be reused against another (ShareTicketManage.validateTicket / POST /de2api/share/proxyInfo). The POST /de2api/share/validate endpoint issues a LinkToken after password verification without requiring a ticket, bypassing the 'ticket mandatory' policy. Additionally, the ticket create and delete endpoints (POST /de2api/ticket/saveTicket, POST /de2api/ticket/delTicket) lack share-ownership checks, allowing an authenticated user who knows another user's ticket to modify, rebind, or delete it (denial of service), and GET /de2api/share/queryRelationByUserId/{uid} allows authenticated users to enumerate other users' share mappings.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-82879 since 08/31/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 2.10.26 eliminates this vulnerability.

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Productinfo

Name

• DataEase

Version

• 2.10.0
• 2.10.1
• 2.10.2
• 2.10.3
• 2.10.4
• 2.10.5
• 2.10.6
• 2.10.7
• 2.10.8
• 2.10.9
• 2.10.10
• 2.10.11
• 2.10.12
• 2.10.13
• 2.10.14
• 2.10.15
• 2.10.16
• 2.10.17
• 2.10.18
• 2.10.19
• 2.10.20
• 2.10.21
• 2.10.22
• 2.10.23
• 2.10.24
• 2.10.25

Website

• Product: https://github.com/dataease/dataease/

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