CVE-2026-19371

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.

CVSS 4.0

1.9CVSS: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

CVSS 3.1

5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-08-09

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://github.com/Nikolaibibo/claude-comfyui-mcp/
• https://github.com/Nikolaibibo/claude-comfyui-mcp/issues/3
• https://vuldb.com/cve/CVE-2026-19371
• https://vuldb.com/submit/866269
• https://vuldb.com/vuln/387255

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