Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/dataease/dataease
- https://github.com/dataease/dataease/commit/fbbb0482c4c10480c2dd4ecc050cd1e5c55b
- https://github.com/dataease/dataease/releases/tag/v2.10.26
- https://github.com/dataease/dataease/security/advisories/GHSA-9h54-39gh-5qfg
- https://www.vulncheck.com/advisories/dataease-before-2.10.26-access-control-bypa
FAQ
What is CVE-2026-82879?
CVE-2026-82879 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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 agains...
How severe is CVE-2026-82879?
CVE-2026-82879 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-82879?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.