ComfyUI up to 0.13.0 Model Preview Endpoint app/model_manager.py get_model_preview path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.9$0-$5k4.16

Summaryinfo

A vulnerability was found in ComfyUI up to 0.13.0. It has been rated as critical. Affected is the function get_model_preview of the file app/model_manager.py of the component Model Preview Endpoint. This manipulation causes path traversal. This vulnerability is registered as CVE-2026-6590. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in ComfyUI up to 0.13.0. It has been declared as problematic. Affected by this vulnerability is the function get_model_preview of the file app/model_manager.py of the component Model Preview Endpoint. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality.

The advisory is shared at gist.github.com. This vulnerability is known as CVE-2026-6590. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-23733). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/19/2026 Advisory disclosed
04/19/2026 +0 days VulDB entry created
04/20/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2026-6590 (🔒)
GCVE (CVE): GCVE-0-2026-6590
GCVE (VulDB): GCVE-100-358225
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/19/2026 11:49
Updated: 04/20/2026 04:41
Changes: 04/19/2026 11:49 (56), 04/20/2026 04:41 (1)
Complete: 🔍
Submitter: Eric-c
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #791109: comfyanonymous ComfyUI <= 0.13.0 (commit 6648ab68) Path Traversal (CWE-22) (by Eric-c)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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