{"id":"CVE-2026-56670","title":"ComfyUI is a modular diffusion model GUI, api and backend with a graph/nodes interface","summary":"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 dangero…","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","cwe":["CWE-79"],"published":"2026-07-31","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:41:31.497","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-56670","references":[{"url":"https://github.com/Comfy-Org/ComfyUI/commit/96e0e3585b41e1417442eaa14ec57f7b4ffcb5e0","label":"security-advisories@github.com"},{"url":"https://github.com/Comfy-Org/ComfyUI/releases/tag/v0.28.0","label":"security-advisories@github.com"},{"url":"https://github.com/Comfy-Org/ComfyUI/security/advisories/GHSA-rj8c-c4p8-3c5h","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00397,"epssPercentile":0.3104,"ingestedAt":"2026-09-08T21:11:12.259Z","slug":"CVE-2026-56670","body":"## Overview\n\nComfyUI 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}