{"id":"CVE-2026-82879","state":"PUBLISHED","title":"DataEase before 2.10.26 Access Control Bypass via Share Tickets","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.","publishedAt":"2026-08-31T10:51:05.222Z","updatedAt":"2026-08-31T18:51:31.680Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["dataease dataease"],"affected":[{"vendor":"dataease","product":"dataease","packageURL":"pkg:github/dataease/dataease","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.10.26","versionType":"semver"},{"version":"2.10.26","status":"unaffected","versionType":"semver"}],"repo":"https://github.com/dataease/dataease","collectionURL":"https://github.com/dataease/dataease"}],"references":["https://github.com/dataease/dataease/security/advisories/GHSA-9h54-39gh-5qfg","https://github.com/dataease/dataease/commit/fbbb0482c4c10480c2dd4ecc050cd1e5c55b17db","https://github.com/dataease/dataease/releases/tag/v2.10.26","https://github.com/dataease/dataease","https://www.vulncheck.com/advisories/dataease-before-2.10.26-access-control-bypass-via-share-tickets"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82879.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82879","state":"PUBLISHED","datePublished":"2026-08-31T10:51:05.222Z","dateUpdated":"2026-08-31T18:51:31.680Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-31T08:38:43.268Z"},"containers":{"cna":{"title":"DataEase before 2.10.26 Access Control Bypass via Share Tickets","descriptions":[{"lang":"en","value":"DataEase before 2.10.26 contains multiple access control defects in the sharing link module. 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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."}],"affected":[{"vendor":"dataease","product":"dataease","packageURL":"pkg:github/dataease/dataease","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.10.26","versionType":"semver"},{"version":"2.10.26","status":"unaffected","versionType":"semver"}],"repo":"https://github.com/dataease/dataease","collectionURL":"https://github.com/dataease/dataease"}],"references":[{"url":"https://github.com/dataease/dataease/security/advisories/GHSA-9h54-39gh-5qfg","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-9h54-39gh-5qfg)"},{"url":"https://github.com/dataease/dataease/commit/fbbb0482c4c10480c2dd4ecc050cd1e5c55b17db","tags":["patch"]},{"url":"https://github.com/dataease/dataease/releases/tag/v2.10.26","tags":["release-notes"],"name":"DataEase v2.10.26 Release Notes"},{"url":"https://github.com/dataease/dataease","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/dataease-before-2.10.26-access-control-bypass-via-share-tickets","name":"VulnCheck Advisory: DataEase before 2.10.26 Access Control Bypass via Share Tickets","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-08-31T10:51:05.222Z"},"datePublic":"2026-07-30T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:dataease:dataease:*:*:*:*:*:*:*:*","versionEndExcluding":"2.10.26"}]}]}],"credits":[{"lang":"en","value":"Dikai Zou","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-31T16:23:03.765571Z","id":"CVE-2026-82879","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-31T18:51:31.680Z"}}]}}}