PT-2026-66678 · Comfy Org · Comfyui

CVE-2026-56671 · Published 2026-07-31 · Updated 2026-07-31

NVD

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. Prior to 0.28.0, get model preview in app/model manager.py joins an unrestricted filename route capture to a selected model directory without a containment check, allowing an unauthenticated remote attacker to use traversal, encoded traversal, absolute paths, or an unbounded path index to read image-decodable files and enumerate host paths. get model preview (app/model manager.py) built the path with os.path.join(folder, filename) where filename is an unrestricted {filename:.*} route capture. Literal ../, percent-encoded %2e%2e%2f, and absolute paths all escaped the model directory; path index was also unbounded. The target file is piped through Pillow and re-encoded as WEBP, so disclosure is limited to image-decodable files plus a file-existence/enumeration oracle (and internal-path leakage via path index errors). This issue is fixed in version 0.28.0.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-56671

Affected Products

Comfyui

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-56671 · Security Note
• https://github.com/Comfy-Org/ComfyUI/pull/14734 · Note
• https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-pj59-g5vv-74q4 · Note
• https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0 · Note