Ruby
CVE-2026-27635
HIGH
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
AnalysisAI
Remote code execution in Manyfold prior to version 0.133.0 allows authenticated users to execute arbitrary commands by uploading a ZIP archive with specially crafted filenames containing shell metacharacters that are passed unsanitized to Ruby backtick execution. The vulnerability affects the model render generation feature and requires an attacker to be logged in, with public exploit code currently available. A patch is available in version 0.133.0 and later.
Technical ContextAI
Classified as CWE-78 (OS Command Injection). Affects Manyfold. 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.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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External POC / Exploit Code
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