Unrated severityNVD Advisory· Published Jul 31, 2026· Updated Jul 31, 2026
ComfyUI: Stored XSS via SVG file upload on the /view endpoint
CVE-2026-56670
Description
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
1Patches
Vulnerability mechanics
References
3- github.com/Comfy-Org/ComfyUI/commit/96e0e3585b41e1417442eaa14ec57f7b4ffcb5e0mitrex_refsource_MISC
- github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0mitrex_refsource_MISC
- github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-rj8c-c4p8-3c5hmitrex_refsource_CONFIRM
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