CVE-2026-35412

Directus has a TUS Upload Authorization Bypass Allows Arbitrary File Overwrite

State: Published
Severity: 7.1 High
Published: Apr 6, 2026
Updated: Apr 7, 2026
Reserved: Apr 2, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L	GitHub_M

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
directusdirectus	< 11.16.1Affected

References

https://github.com/directus/directus/security/advisories/GHSA-qqmv-5p3g-px89

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