CVE-2026-56670: Comfy-Org Comfyui

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface. Prior to 0.28.0, the /view endpoint served uploaded SVG files inline because image/svg+xml and related XML content types were absent from the dangerous-content-type handling, allowing stored cross-site scripting in the ComfyUI origin. This issue is fixed in version 0.28.0.

Affected products

• Comfy-Org Comfyui: before 0.28.0 (fixed in 0.28.0)

Published 2026-07-31. Last modified 2026-09-08.