Is this vulnerability remotely exploitable over the internet?

Yes, if the Manyfold instance is exposed over the network and render generation is enabled. However, exploitation still requires an authenticated user account with permission to upload model archives, so anonymous exploitation is not expected in a default authenticated setup.

What level of access does an attacker need to exploit this issue?

The attacker must be a logged-in user who can upload ZIP archives containing 3D models. They do not need administrative privileges within the application, but they do need sufficient permissions to trigger the render generation workflow.

What is the safest general fix pattern for this vulnerability class?

The safest pattern is to stop constructing shell commands with untrusted input entirely. Use process execution functions that accept argument arrays (bypassing the shell), strictly validate and sanitize all filenames and paths, and avoid Ruby backticks or similar constructs for any operation influenced by user data.

Severity:

HIGH RISK

(7.5)

OS Command Injection via Unsanitized Filenames (CWE-78) in Manyfold Render Generation

CVE-2026-27635

Published:

Feb 25, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Remote Code Execution

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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OS Command Injection via Unsanitized Filenames (CWE-78) in Manyfold Render Generation

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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