{"id":"CVE-2026-67528","summary":"OpenProject: Improper Access Control through /api/v3/custom_options/:id via Path \"id\" leads to Sensitive Data Exposure","details":"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.","aliases":["GHSA-wr3w-qchj-p4cm"],"modified":"2026-08-02T03:31:57.813874174Z","published":"2026-07-30T19:24:09.494Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67528.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-863"]},"references":[{"type":"WEB","url":"https://github.com/opf/openproject/releases/tag/v17.6.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67528.json"},{"type":"ADVISORY","url":"https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67528"},{"type":"FIX","url":"https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opf/openproject","events":[{"introduced":"0"},{"fixed":"a13fa079bc8040449570384c19f2d98f637179f1"},{"fixed":"2ba1fce1196268ce5686ae308eceee744237440c"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"17.6.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["11.2.1","v10.5","v9.0.0-pre","v5.0.4","sprint/2015_04","sprint/2015_03","sprint/2015_02","sprint/2015_01","sprint/2014_18","sprint/2014_16","sprint/2014_13","sprint/2014_12","sprint/2014_11","sprint/2014_10","sprint/2014_09","sprint/2014_08","2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67528.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}