{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67528","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-29T18:47:17.073Z","datePublished":"2026-07-30T19:24:09.494Z","dateUpdated":"2026-07-31T23:06:18.155Z"},"containers":{"cna":{"title":"OpenProject: Improper Access Control through /api/v3/custom_options/:id via Path \"id\" leads to Sensitive Data Exposure","problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm"},{"name":"https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1","tags":["x_refsource_MISC"],"url":"https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1"},{"name":"https://github.com/opf/openproject/releases/tag/v17.6.0","tags":["x_refsource_MISC"],"url":"https://github.com/opf/openproject/releases/tag/v17.6.0"}],"affected":[{"vendor":"opf","product":"openproject","versions":[{"version":"< 17.6.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-30T19:24:09.494Z"},"descriptions":[{"lang":"en","value":"OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/custom_options/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visible(current_user), so authenticated non-admin users could enumerate sequential custom option ids and read labels belonging to admin_only user or group custom fields. This issue is fixed in 17.6.0."}],"source":{"advisory":"GHSA-wr3w-qchj-p4cm","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-31T23:06:08.257632Z","id":"CVE-2026-67528","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-31T23:06:18.155Z"}}]}}