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.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Local

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Nikolaibibo
  • Claude-comfyui-mcp

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References
Link Providers
https://github.com/Nikolaibibo/claude-comfyui-mcp/ cve-icon cve-icon
https://github.com/Nikolaibibo/claude-comfyui-mcp/issues/3 cve-icon cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-19371 cve-icon cve-icon
https://vuldb.com/submit/866269 cve-icon cve-icon
https://vuldb.com/vuln/387255 cve-icon cve-icon
https://vuldb.com/vuln/387255/cti cve-icon cve-icon
History

Thu, 13 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sun, 09 Aug 2026 22:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Nikolaibibo claude-comfyui-mcp comfy_upload_image utils.ts copyFileSync path traversal
First Time appeared Nikolaibibo
Nikolaibibo claude-comfyui-mcp
Weaknesses CWE-22
CPEs cpe:2.3:a:nikolaibibo:claude-comfyui-mcp:*:*:*:*:*:*:*:*
Vendors & Products Nikolaibibo
Nikolaibibo claude-comfyui-mcp
References
Metrics cvssV2_0

{'score': 4.3, 'vector': 'AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-08-09T22:15:11.924Z

Updated: 2026-08-13T19:09:51.571Z

Reserved: 2026-08-09T07:08:02.581Z

Link: CVE-2026-19371

cve-icon Vulnrichment

Updated: 2026-08-13T19:09:28.320Z

cve-icon NVD

Status : Deferred

Published: 2026-08-09T23:16:35.943

Modified: 2026-08-13T20:17:20.783

Link: CVE-2026-19371

cve-icon Redhat

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