---
id: CVE-2026-19371
title: A vulnerability was identified in Nikolaibibo claude-comfyui-mcp 1.0.0
summary: >-
  A vulnerability was identified in Nikolaibibo claude-comfyui-mcp 1.0.0.
  Affected is the function copyFileSync of the file src/tools/utils.ts of the
  component comfy_upload_image. Such manipulation of the argument image_path
  leads to path …
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-22
published: '2026-08-09'
updated: '2026-08-09'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19371'
references:
  - url: 'https://github.com/Nikolaibibo/claude-comfyui-mcp/'
    label: cna@vuldb.com
  - url: 'https://github.com/Nikolaibibo/claude-comfyui-mcp/issues/3'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-19371'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/866269'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/387255'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/387255/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-08-10T04:38:56.510Z'
epss: 0.00172
epssPercentile: 0.0581
---

## Overview

A vulnerability was identified in Nikolaibibo claude-comfyui-mcp 1.0.0. Affected is the function copyFileSync of the file src/tools/utils.ts of the component comfy_upload_image. Such manipulation of the argument image_path leads to path traversal. An attack has to be approached locally. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.