Comfy-Org ComfyUI up to 0.27.x LoadImage folder_paths.py path traversal

Summaryinfo

A vulnerability was found in Comfy-Org ComfyUI up to 0.27.x and classified as problematic. This issue affects the function folder_paths.get_annotated_filepath/exists_annotated_filepath of the file folder_paths.py of the component LoadImage. Such manipulation leads to path traversal. This vulnerability is traded as CVE-2026-56673. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Comfy-Org ComfyUI up to 0.27.x. Affected by this issue is the function folder_paths.get_annotated_filepath/exists_annotated_filepath of the file folder_paths.py of the component LoadImage. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. CVE summarizes:

ComfyUI is a modular diffusion model GUI, API, and backend with a graph-and-node interface. Prior to 0.28.0, folder_paths.get_annotated_filepath and exists_annotated_filepath join workflow-controlled annotated filenames to a base directory without a containment check, allowing an unauthenticated crafted POST /prompt workflow using LoadImage or sibling nodes to probe arbitrary host paths and exfiltrate image-format files through /view. LoadImage defines a VALIDATE_INPUTS method, which causes the execution engine to skip COMBO (input-directory) validation. Affected nodes include LoadImage, LoadImageMask, LoadImageOutput, LoadAudio, LoadLatent, LoadVideo, and Load3D. This issue is fixed in version 0.28.0.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-56673 since 06/22/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 0.28.0 eliminates this vulnerability.

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Productinfo

Vendor

• Comfy-Org

Name

• ComfyUI

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27

Website

• Product: https://github.com/Comfy-Org/ComfyUI/

CPE 2.3info

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CPE 2.2info

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