A vulnerability was identified in Nikolaibibo claude-comfyui-mcp 1.0.0. (CVE-2026-19371)
CVE-2026-19371 is a path traversal vulnerability in the copyFileSync function of the comfy_upload_image component in Nikolaibibo claude-comfyui-mcp 1.0.0. The flaw allows local attackers with limited privileges to manipulate the image_path argument, potentially leading to unauthorized file access or modification. The project has been informed but has not yet responded or issued a fix. The vulnerability has a CVSS score of 5.3, indicating low severity.
AI Analysis
Technical Summary
This vulnerability affects the copyFileSync function in src/tools/utils.ts of the comfy_upload_image component in Nikolaibibo claude-comfyui-mcp version 1.0.0. It allows local attackers to perform path traversal by manipulating the image_path argument, which could lead to unauthorized reading or writing of files outside the intended directory. The vulnerability requires local access and does not involve user interaction. No patch or official fix has been released as of the latest information.
Potential Impact
An attacker with local access and low privileges can exploit this vulnerability to traverse directories and potentially read or write files outside the intended scope. This could lead to limited confidentiality, integrity, and availability impacts. The overall severity is low due to the requirement for local access and limited privileges.
Mitigation Recommendations
No official fix or patch is currently available. Since the project has not responded to the issue report, users should restrict local access to trusted users only and monitor for any suspicious local activity. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
A vulnerability was identified in Nikolaibibo claude-comfyui-mcp 1.0.0. (CVE-2026-19371)
Description
CVE-2026-19371 is a path traversal vulnerability in the copyFileSync function of the comfy_upload_image component in Nikolaibibo claude-comfyui-mcp 1.0.0. The flaw allows local attackers with limited privileges to manipulate the image_path argument, potentially leading to unauthorized file access or modification. The project has been informed but has not yet responded or issued a fix. The vulnerability has a CVSS score of 5.3, indicating low severity.
CVSS v3.1
Score 5.3medium
Affected software
pkg:github/nikolaibibo/claude-comfyui-mcpRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the copyFileSync function in src/tools/utils.ts of the comfy_upload_image component in Nikolaibibo claude-comfyui-mcp version 1.0.0. It allows local attackers to perform path traversal by manipulating the image_path argument, which could lead to unauthorized reading or writing of files outside the intended directory. The vulnerability requires local access and does not involve user interaction. No patch or official fix has been released as of the latest information.
Potential Impact
An attacker with local access and low privileges can exploit this vulnerability to traverse directories and potentially read or write files outside the intended scope. This could lead to limited confidentiality, integrity, and availability impacts. The overall severity is low due to the requirement for local access and limited privileges.
Mitigation Recommendations
No official fix or patch is currently available. Since the project has not responded to the issue report, users should restrict local access to trusted users only and monitor for any suspicious local activity. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-g57q-682f-hr5f
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-19371"]
- Ecosystems
- []
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6a79f0f4bf8831d539f646c7
Added to database: 08/10/2026, 15:40:36 UTC
Last enriched: 08/10/2026, 16:09:33 UTC
Last updated: 08/11/2026, 04:40:59 UTC
Views: 8
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