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.
{
"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"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "17.6.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "db480bdeb8802e3d33e4448bb4e4b56a01de2e1f"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v17.6.0",
"range": [
{
"fixed": "2ba1fce1196268ce5686ae308eceee744237440c"
}
],
"source": "REFERENCES_TAG"
}
]
}