Quick answers
- Is CVE-2026-56673 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-56673 being exploited in the wild.
- How severe is CVE-2026-56673?
- High severity, with a CVSS score of 7.5, published 31 July 2026.
- Which products and versions are affected?
- Comfy-Org ComfyUI < 0.28.0.
- Is there a fix for CVE-2026-56673?
- A patch was published on 2026-07-03: Fixes merged into master branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-56673 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-56673?
- Check whether you run Comfy-Org ComfyUI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A path traversal vulnerability exists in ComfyUI's 'folder_paths.get_annotated_filepath' and 'exists_annotated_filepath' functions. These functions join user-controlled filenames to a base directory without performing a containment check (such as verifying the commonpath), allowing the use of '../' sequences to escape the intended directory. Furthermore, the 'LoadImage' node defines a 'VALIDATE_INPUTS' method that inadvertently causes the execution engine to skip standard input directory validation. An unauthenticated attacker can exploit this by sending a crafted POST request to the '/prompt' endpoint to probe for the existence of arbitrary files or exfiltrate image-format files via the '/view' endpoint. Affected nodes include LoadImage, LoadImageMask, LoadImageOutput, LoadAudio, LoadLatent, LoadVideo, and Load3D. The issue is resolved in version 0.28.0 by hardening path resolution logic.
Affected products
- Comfy-Org ComfyUI < 0.28.0
Timeline
- 2026-07-03: patched: Fixes merged into master branch
- 2026-07-15: advisory: GitHub Security Advisory published
- 2026-07-31: disclosed: CVE published to NVD