{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67527","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-29T18:47:17.073Z","datePublished":"2026-07-30T19:19:25.028Z","dateUpdated":"2026-07-31T15:59:12.286Z"},"containers":{"cna":{"title":"OpenProject: Improper Access Control through /api/v3/work_packages/<X.id> via PATCH parameter \"fileLinks\"","problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.6,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f"},{"name":"https://github.com/opf/openproject/pull/23815","tags":["x_refsource_MISC"],"url":"https://github.com/opf/openproject/pull/23815"},{"name":"https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f","tags":["x_refsource_MISC"],"url":"https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f"},{"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":"2026-07-30T19:19:25.028Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-c6rc-4288-8p4f","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-31T15:45:55.982320Z","id":"CVE-2026-67527","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":"2026-07-31T15:59:12.286Z"}}]}}