CVE-2026-56673: ComfyUI Path Traversal and File Exfiltration Flaw
ComfyUI
ComfyUI before version 0.28.0 allows unauthenticated attackers to probe host paths and exfiltrate image-format files via crafted prompt workflows. A vulnerability advisory has been published without confirmed exploitation.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 7.5
- EPSS
- 0.01 · top 50% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 31 Jul 2026
- last update
- 31 Jul 2026
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2026-07-31CVE-2026-56673: ComfyUI is a modular diffusion model GUI, API, and backend with a graph-and-node interface.NVD · nvd.nist.gov/vuln/detail/CVE-2026-56673
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 31 Jul 2026 · first reported 31 Jul 2026
- origin
- NVDVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
Copy a brief
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the brief as text
# CVE-2026-56673: ComfyUI Path Traversal and File Exfiltration Flaw https://gcdradar.vercel.app/incidents/cve-2026-56673-comfyui-path-traversal-and-file-exfiltration · AIR-2026-1234 · closed 2026-07-31 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2026-07-31 - AI role: Attack on AI - Products: ComfyUI - CVE ids: CVE-2026-56673 - CVSS: 7.5 ## Summary ComfyUI before version 0.28.0 allows unauthenticated attackers to probe host paths and exfiltrate image-format files via crafted prompt workflows. A vulnerability advisory has been published without confirmed exploitation. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2026-07-31: CVE-2026-56673: ComfyUI is a modular diffusion model GUI, API, and backend with a graph-and-node interface. (https://nvd.nist.gov/vuln/detail/CVE-2026-56673) ## Sources - 2026-07-31 NVD: CVE-2026-56673: ComfyUI is a modular diffusion model GUI, API, and backend with a graph-and-node interface. https://nvd.nist.gov/vuln/detail/CVE-2026-56673 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
Related
- closed8.2ComfyUI + custom nodes CVE-2026-56670: Stored XSS via SVG handling in ComfyUI view endpoint
Patch now · Disclosed · since 31 Jul 2026 · CVE-2026-56670
AI - closed8.2ComfyUI + custom nodes CVE-2026-56672: Stored XSS vulnerability in ComfyUI userdata endpoint
Patch now · Disclosed · since 31 Jul 2026 · CVE-2026-56672
AI - closed9.8ComfyUI + custom nodes CVE-2026-68771: ComfyUI Unsafe Deserialization in Training Dataset Node
Patch now · Disclosed · since 31 Jul 2026 · CVE-2026-68771
AI - closed7.5ComfyUI + custom nodes CVE-2026-56671: ComfyUI Path Traversal Vulnerability in Model Preview
Patch now · Disclosed · since 31 Jul 2026 · CVE-2026-56671
AI - closed8.5ComfyUI + custom nodes CVE-2026-92816: ComfyUI path traversal leads to code execution
Patch now · Disclosed · since 16 Sep 2026 · CVE-2026-92816
AI - closed4.3ComfyUI + custom nodes CVE-2026-6590: Path traversal in ComfyUI model preview endpoint
Patch now · Disclosed · since 20 Apr 2026 · CVE-2026-6590
AI