RCE in Manyfold
CVE-2026-27635
Manyfold is an open source, self-hosted web application for managing a collection of 3d models, particularly focused on 3d printing. Prior to version 0.133.0, when model render generation is enabled, a logged-in user can achieve RCE by uploading a ZIP containing a file with a shell metacharacter in its name. The filename reaches a Ruby backtick call unsanitized. Version 0.133.0 fixes the issue.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Manyfold
- Manyfold3d Manyfold — versions < 0.133.0
Weakness classification (CWE)
References
- github.com/manyfold3d/manyfold/security/advisories/GHSA-p589-cf26-v7h2 (Exploit, Vendor Advisory)
- github.com/manyfold3d/manyfold/releases/tag/v0.133.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-27635?
- CVE-2026-27635 is a high-severity vulnerability in Manyfold, classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-02-26.
- How severe is CVE-2026-27635?
- High severity. CVSS v3 base score is 7.5 out of 10.