CVE-2026-82879 dataease CVE debrief

Who should care

Users of DataEase before version 2.10.26, administrators of DataEase installations, security teams monitoring for access control bypass vulnerabilities, and operators managing DataEase deployments should be aware of the potential risks and take necessary actions to mitigate them. Affected users should prioritize inventory checks, monitor for suspicious activity, and apply vendor remediation when available. Security teams should review compensating controls for access control and enumeration vulnerabilities. Operators managing DataEase deployments should verify affected scope and severity, and plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Vulnerability management teams should track exceptions, retest remediated assets, and close the item only after evidence is documented. Additionally, platform administrators should implement monitoring, detection, and logs for exposed assets that need extra review. Asset inventory managers should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. Change management teams should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. Compensating control owners should review compensating controls for exposed systems while remediation is scheduled and verified. Source tracking teams should check relevant monitoring, detection, and logs for exposed assets that need extra review. Rollback/change window managers should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Security teams should implement compensating controls for access control and enumeration vulnerabilities. Monitoring teams should monitor for suspicious activity on sharing link module. Asset inventory managers should inventory and verify affected DataEase installations. Compensating control owners should implement compensating controls for access control and enumeration vulnerabilities. Vulnerability management teams should apply vendor remediation when available. Change management teams should review compensating controls for exposed systems while

Technical summary

The DataEase application before version 2.10.26 contains multiple access control defects in its sharing link module. Specifically, tickets issued for one share can be reused against another share due to a lack of binding to the target share UUID. Additionally, the application issues a LinkToken after password verification without requiring a ticket, bypassing the 'ticket mandatory' policy. The ticket creation and deletion endpoints also lack share-ownership checks, allowing authenticated users to modify, rebind, or delete tickets not owned by them, potentially leading to denial of service. Furthermore, authenticated users can enumerate other users' share mappings via the GET /de2api/share/queryRelationByUserId/{uid} endpoint.

Defensive priority

Authenticated users may be able to bypass access controls and enumerate share mappings; prioritize inventory checks and monitor for suspicious activity.

Recommended defensive actions

• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Inventory and verify affected DataEase installations

Evidence notes

The CVE description notes multiple access control defects in the sharing link module of DataEase before 2.10.26, including ticket reuse, bypass of 'ticket mandatory' policy, and lack of share-ownership checks. The defects allow an authenticated user who knows another user's ticket to modify, rebind, or delete it, potentially leading to denial of service. Additionally, authenticated users can enumerate other users' share mappings via the GET /de2api/share/queryRelationByUserId/{uid} endpoint. Evidence is limited to CVE description and source references.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.