Path Traversal Vulnerability in ComfyUI Allowing Arbitrary File Writes
CVE-2026-92816

8.5HIGH

Key Information:

Vendor

Comfy-org

Status
Comfyui
Vendor
CVE Published:
16 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-92816?

ComfyUI versions prior to 0.30.0 have a vulnerability where the application fails to sanitize the 'folder_name' input in dataset save nodes, enabling attackers to exploit this flaw. By crafting a malicious workflow, an attacker can write files to unintended locations outside the designated output directory, potentially allowing code execution through manipulation of startup files or package initializers. It is crucial for users to upgrade to version 0.30.0 or later, where this vulnerability is addressed with improved input validation mechanisms.

Affected Version(s)

ComfyUI 0 < 0.30.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-92816 - Proof of Concept

References

https://github.com/geo-chen/oss/blob/main/ComfyUI.md
technical-descriptionexploit
https://github.com/Comfy-Org/ComfyUI/blob/v0.24.0/comfy_e...
technical-description
https://github.com/Comfy-Org/ComfyUI/blob/v0.30.0/comfy_e...
patch

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.