CVE-2026-46336: Manyfold: Authenticated Path Traversal via File Rename

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-16 · updated 2026-10-24
Weakness: CWE-22

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.

Affected products

manyfold3d manyfold: from 0.96.0, < 0.140.0

References

https://github.com/manyfold3d/manyfold/commit/ed6a53e54926708594c07d222155ac3a22f93174
https://github.com/manyfold3d/manyfold/pull/6122
https://github.com/manyfold3d/manyfold/releases/tag/v0.140.0
https://github.com/manyfold3d/manyfold/security/advisories/GHSA-j5f9-r7wf-hv37
https://github.com/manyfold3d/manyfold/security/advisories/GHSA-j5f9-r7wf-hv37

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