---
title: "CVE-2026-59176: Functype - Command Injection"
description: "Functype < 1.4.4 contains a command injection caused by unconstrained version string interpolation in set_functype_version MCP tool, letting remote attackers execute arbitrary code via dynamic module import, exploit requires network access in certain deployments."
url: https://panop.io/threat-heartbeat/CVE-2026-59176/
---

# CVE-2026-59176 Functype - Command Injection

Functype < 1.4.4 contains a command injection caused by unconstrained version string interpolation in set\_functype\_version MCP tool, letting remote attackers execute arbitrary code via dynamic module import, exploit requires network access in certain deployments.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-59176)

## Details

Type

Command Injection

Impact

Remote Code Execution, File System Write, Information Disclosure, Denial Of Service

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-829](https://cwe.mitre.org/data/definitions/829.html)

## Vendor fix

Update to version 1.4.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-59176](https://nvd.nist.gov/vuln/detail/CVE-2026-59176)
- [https://github.com/jordanburke/functype/commit/c0d58ad9c2a7d15c6117bd3adbbd75de37317dcf](https://github.com/jordanburke/functype/commit/c0d58ad9c2a7d15c6117bd3adbbd75de37317dcf)
- [https://github.com/jordanburke/functype/releases/tag/v1.4.4](https://github.com/jordanburke/functype/releases/tag/v1.4.4)
- [https://github.com/jordanburke/functype/security/advisories/GHSA-wcjj-9m6g-2fr2](https://github.com/jordanburke/functype/security/advisories/GHSA-wcjj-9m6g-2fr2)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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