High
Directus has a TUS Upload Authorization Bypass Allows Arbitrary File Overwrite
Type: advisorySources: OSV
Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.16.1, Directus' TUS resumable upload endpoint (/files/tus) allows any authenticated user with basic file upload permissions to overwrite arbitrary existing files by UUID. The TUS controller performs only collection-level authorization checks, verifying the user has some permission on directus_files, but never validates item-level access to the specific file being replaced. As a result, row-level permission rules (e.g., "users can only update their own files") are completely bypassed via the TUS path while being correctly enforced on the standard REST upload path. This vulnerability is fixed in 11.16.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-35412
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 15:00 UTC · Revision 1
Source evidence
Directus has a TUS Upload Authorization Bypass Allows Arbitrary File Overwrite
core-osv · Original sourcePublished 6 Apr 2026, 21:33 UTC
Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.16.1, Directus' TUS resumable upload endpoint (/files/tus) allows any authenticated user with basic file upload permissions to overwrite arbitrary existing files by UUID. The TUS controller performs only collection-level authorization checks, verifying the user has some permission on directus_files, but never validates item-level access to the specific file being replaced. As a result, row-level permission rules (e.g., "users can only update their own files") are completely bypassed via the TUS path while being correctly enforced on the standard REST upload path. This vulnerability is fixed in 11.16.1.
osv:CVE-2026-35412
Complete source record
{
"id": "e0b63a6da5bdd59488e8ee086de84a11a32178e1bc48d4f8207093d12e080434",
"url": "https://osv.dev/vulnerability/CVE-2026-35412",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Directus has a TUS Upload Authorization Bypass Allows Arbitrary File Overwrite",
"summary": "Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.16.1, Directus' TUS resumable upload endpoint (/files/tus) allows any authenticated user with basic file upload permissions to overwrite arbitrary existing files by UUID. The TUS controller performs only collection-level authorization checks, verifying the user has some permission on directus_files, but never validates item-level access to the specific file being replaced. As a result, row-level permission rules (e.g., \"users can only update their own files\") are completely bypassed via the TUS path while being correctly enforced on the standard REST upload path. This vulnerability is fixed in 11.16.1.",
"evidence": "osv:CVE-2026-35412",
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"modified": "2026-10-28T02:30:36.551016117Z",
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"references": [
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}