CVE-2026-46336 Manyfold: Authenticated Path Traversal via File Rename
Authenticated users can exploit path traversal in file renaming to move or write files outside the intended directory in Manyfold.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46336?
CVE-2026-46336 is a high-severity path traversal vulnerability in manyfold3d manyfold, published on 16 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Manyfold is an open source, self-hosted web application for managing a collection of 3d models, particularly focused on 3d printing. From 0.96.0 until 0.140.0, authenticated users can rename uploaded files with path traversal sequences because app/models/model_file.rb uses the user-controlled filename in File.join(model.path, filename) without sufficient sanitization, allowing files to be moved or written outside the configured library directory. This issue is fixed in version 0.140.0.
Which versions are affected by CVE-2026-46336?
How do I fix CVE-2026-46336?
No fix has been published for CVE-2026-46336 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-46336 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46336 exists.
Sources
Also known as GHSA-j5f9-r7wf-hv37.