{"id":"CVE-2026-67527","summary":"OpenProject: Improper Access Control through /api/v3/work_packages/\u003cX.id\u003e via PATCH parameter \"fileLinks\"","details":"OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/work_packages/{id} accepted _links.fileLinks and allowed authenticated users with edit_work_packages but without manage_file_links to resolve Storages::FileLink records by raw id, detach or hard-delete existing FileLinks, and re-parent FileLinks from other projects to an attacker-controlled work package, exposing origin filename, origin id, and MIME type metadata. This issue is fixed in 17.6.0.","aliases":["GHSA-c6rc-4288-8p4f"],"modified":"2026-08-01T03:47:22.434060473Z","published":"2026-07-30T19:19:25.028Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67527.json"},"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-2026-67527.json"},{"type":"ADVISORY","url":"https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67527"},{"type":"FIX","url":"https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f"},{"type":"FIX","url":"https://github.com/opf/openproject/pull/23815"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opf/openproject","events":[{"introduced":"0"},{"fixed":"db480bdeb8802e3d33e4448bb4e4b56a01de2e1f"},{"fixed":"2ba1fce1196268ce5686ae308eceee744237440c"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"17.6.0"}]}}],"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-2026-67527.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:H/A:L"}]}