Is there a public PoC exploit available for CVE-2026-6591?

Yes, a public proof-of-concept exploit is available for CVE-2026-6591. Prioritise patching immediately. EPSS: 0.0%.

Comfyui CVE-2026-6591

Q: What is the CVSS score of CVE-2026-6591?

CVE-2026-6591 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

EUVD-2026-23735 LOW

Path Traversal (CWE-22)

2026-04-20 VulDB

Path Traversal Comfyui

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:12 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:12 NVD

5.3 (MEDIUM) 2.1 (LOW)

PoC Detected

Apr 29, 2026 - 01:00 vuln.today

Public exploit code

CVSS changed

Apr 20, 2026 - 01:22 NVD

4.3 (MEDIUM) 5.3 (MEDIUM)

Analysis Generated

Apr 20, 2026 - 01:18 vuln.today

EUVD ID Assigned

Apr 20, 2026 - 01:15 euvd

EUVD-2026-23735

Analysis Generated

Apr 20, 2026 - 01:15 vuln.today

CVE Published

Apr 20, 2026 - 01:00 nvd

LOW 2.1

DescriptionCVE.org

A flaw has been found in ComfyUI up to 0.13.0. Affected is the function folder_paths.get_annotated_filepath of the file folder_paths.py of the component LoadImage Node. This manipulation of the argument Name causes path traversal. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Path traversal in ComfyUI up to version 0.13.0 allows authenticated remote attackers to read arbitrary files on the server by manipulating the Name argument in the LoadImage Node's folder_paths.get_annotated_filepath function. The vulnerability has publicly available exploit code and affects the image loading functionality, enabling attackers with valid credentials to access sensitive files outside intended directories.

Technical ContextAI

ComfyUI is a node-based UI framework for Stable Diffusion. The vulnerability exists in the LoadImage Node component, specifically in the folder_paths.py module's get_annotated_filepath function. This function handles file path resolution for loading images but fails to properly sanitize the Name argument, allowing directory traversal sequences (e.g., '../../../') to bypass path restrictions. CWE-22 (Improper Limitation of a Pathname to a Restricted Directory) indicates insufficient input validation on file path components. The affected CPE (cpe:2.3:a:comfyui) indicates all versions up to 0.13.0 are vulnerable. The vulnerability is exploitable over the network as the LoadImage Node receives input that can be crafted by any authenticated user of the ComfyUI instance.

RemediationAI

Upgrade ComfyUI to a version newer than 0.13.0 once a patched release is available. As of the time of analysis, the vendor (ComfyUI developers) has not responded to the early disclosure notification and no official patch version has been confirmed. In the interim, implement the following compensating controls: restrict network access to ComfyUI instances to trusted internal networks only using firewall rules or VPN access, enforce strong authentication and session management to reduce the likelihood of credential compromise, and disable or restrict the LoadImage Node feature if image loading is not critical to your workflow. Alternatively, run ComfyUI in a sandboxed or containerized environment with filesystem restrictions to limit the scope of path traversal attacks. Monitor the official ComfyUI GitHub repository (https://github.com/comfyanonymous/ComfyUI) and the VulDB reference (https://vuldb.com/vuln/358226) for patch availability announcements. Apply patches immediately upon release, as the combination of publicly available exploit code and network accessibility creates significant residual risk.