CVE-2026-39942 Directus has a Path Traversal and Broken Access Control in File Management API
Attackers can overwrite other users' files and manipulate metadata via the file management API, compromising data integrity and access controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-39942?
CVE-2026-39942 is a high-severity path traversal vulnerability in Monospace Directus, published on 9 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.17.0, the PATCH /files/{id} endpoint accepts a user-controlled filename_disk parameter. By setting this value to match the storage path of another user's file, an attacker can overwrite that file's content while manipulating metadata fields such as uploaded_by to obscure the tampering. This vulnerability is fixed in 11.17.0.
Which versions are affected by CVE-2026-39942?
2 open source packages ship an affected version, including directus. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
directus npm | All versions | 11.17.0 |
directus npm | All versions | 11.17.0 |
Products include Monospace Directus.
How do I fix CVE-2026-39942?
Upgrade directus to 11.17.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-39942 being exploited?
There is no known exploitation of CVE-2026-39942 in the wild and no public exploit code.
Other vulnerabilities in Monospace Directus
- CVE-2022-26969 Insecure default value for CORS configuration
- CVE-2025-55746 Directus allows unauthenticated file upload and file modification due to lacking input sanitization
- CVE-2026-35408 Directus is Missing Cross-Origin Opener Policy
- CVE-2026-61836 Directus: Authorization-dependent response served from unsegmented cache key
- CVE-2025-30353 Directus's webhook trigger flows can leak sensitive data
Sources
Also known as GHSA-393c-p46r-7c95.