{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.10.26"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "04129b006b2a51447fb15f5c32138f39a4fd4fec"
            },
            {
              "fixed": "fbbb0482c4c10480c2dd4ecc050cd1e5c55b17db"
            }
          ],
          "repo": "https://github.com/dataease/dataease",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9h54-39gh-5qfg"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82879.json"
  },
  "details": "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.",
  "id": "CVE-2026-82879",
  "modified": "2026-09-02T03:30:26.264161731Z",
  "published": "2026-08-31T10:51:05.222Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82879.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/dataease/dataease/releases/tag/v2.10.26"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/dataease/dataease/security/advisories/GHSA-9h54-39gh-5qfg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82879"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/dataease-before-2.10.26-access-control-bypass-via-share-tickets"
    },
    {
      "type": "FIX",
      "url": "https://github.com/dataease/dataease/commit/fbbb0482c4c10480c2dd4ecc050cd1e5c55b17db"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dataease/dataease"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "DataEase before 2.10.26 Access Control Bypass via Share Tickets"
}