# ComfyUI-Manager unprotected alternate channel

Source: https://junglewise.ai/threats/comfyui-manager-unprotected-alternate-channel-dfdd66c9  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-01-05. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2026-01-05

ComfyUI-Manager is an extension system for the ComfyUI AI image processing application. Versions prior to 3.38 stored configuration and critical data files in a location accessible via the web interface, allowing remote attackers to view, modify, or exfiltrate sensitive application settings and user data without authentication.

Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 5 January 2026.

**Which products and versions are affected?** comfyui-manager (PyPI) ECOSYSTEM:introduced=0,fixed=3.38.

**Is there a fix for This vulnerability?** Yes. comfyui-manager (PyPI): upgrade to 3.38 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is This vulnerability attacked?** It is attacked over the network, in a software library.

**Am I affected?** Check whether you run comfyui-manager (PyPI) 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.

## How to fix

- comfyui-manager (PyPI): upgrade to 3.38 or later

  ```sh
  pip install "comfyui-manager>=3.38"
  ```


## Technical details

The vulnerability is an unprotected alternate channel (CWE-420) where ComfyUI-Manager stored its files in a web-accessible directory without proper access controls. The application failed to restrict direct HTTP access to configuration and data files, allowing unauthenticated remote attackers to read and potentially manipulate critical application state. This affects all versions prior to 3.38. The fix involved implementing system user protection APIs and migrating sensitive data to protected locations. The vulnerability is network-reachable and requires no authentication or user interaction.

## Affected products

- Comfy-Org ComfyUI-Manager prior to 3.38

## Timeline

- 2026-01-05: disclosed: Advisory published (later withdrawn as duplicate)
- 2026-12-02: patched: Version 3.38 released with security migration
- 2026-06-22: other: Advisory withdrawn as duplicate of GHSA-95pq-hr8p-f5g7

## References

- [https://github.com/Comfy-Org/ComfyUI-Manager/pull/2338/commits/e44c5cef58fb4973670b86433b9d24d077b44a26](https://github.com/Comfy-Org/ComfyUI-Manager/pull/2338/commits/e44c5cef58fb4973670b86433b9d24d077b44a26)

## Related threats

- [Comfy-Org ComfyUI-Manager unprotected alternate channel in configuration directory](https://junglewise.ai/threats/cve-2025-67303-comfy-org-comfyui-manager-unprotected-alternate-channel-in)