Authorization bypass through user-controlled key in Directus - #VU141292
Published: August 7, 2026
Vulnerability identifier: #VU141292
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to overwrite another user\'s file and rewrite its metadata.
The vulnerability exists due to authorization bypass through user-controlled key in the TUS resumable upload endpoint when processing upload replacement metadata. A remote user can supply a victim file id in the Upload-Metadata header to overwrite another user\'s file and rewrite its metadata.
Only instances with `TUS_ENABLED=true` are vulnerable. The issue affects upload replacement through the `replace_id` metadata key, and no victim interaction is required.
Affected software
Directus
Remediation
Install security update from vendor's website.
Directus - update to 12.1.0