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CVE-2026-68771— ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization

Quick assessment

Affected
Comfy-Org ComfyUI
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Comfy Org ComfyUI是Comfy Org组织开源的一款节点式工作流AI绘画工具。 Comfy Org ComfyUI 0.23.0及之前版本存在反序列化注入漏洞，该漏洞源于LoadTrainingDataset节点存在不安全的反序列化问题，攻击者可通过未认证的POST /upload/image端点上传特制pickle文件，并通过POST /prompt触发反序列化，导致以ComfyUI进程用户身份执行任意代码。

CVSS 9.8 · Critical EPSS 1.15% · P66

Affected Version Matrix 1

VendorProduct Version RangeStatus
Comfy-Org ComfyUI ≤ 0.23.0 affected
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I. Basic Information for CVE-2026-68771

Vulnerability Information
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Vulnerability Title
ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization
Source: CVE Program / CVE List V5
Vulnerability Description
ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by uploading a crafted pickle file and triggering its deserialization. Attackers can upload a malicious shard_*.pkl file via the unauthenticated POST /upload/image endpoint and then queue a workflow graph via POST /prompt referencing the uploaded file, causing torch.load to deserialize the attacker-controlled pickle payload using __reduce__ and execute arbitrary commands as the ComfyUI process user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Comfy Org ComfyUI 反序列化漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Comfy Org ComfyUI是Comfy Org组织开源的一款节点式工作流AI绘画工具。 Comfy Org ComfyUI 0.23.0及之前版本存在反序列化注入漏洞，该漏洞源于LoadTrainingDataset节点存在不安全的反序列化问题，攻击者可通过未认证的POST /upload/image端点上传特制pickle文件，并通过POST /prompt触发反序列化，导致以ComfyUI进程用户身份执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Comfy-Org ComfyUI 0 ~ 0.23.0 -

II. Public POCs for CVE-2026-68771

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 5640 chars
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III. Intelligence Information for CVE-2026-68771

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Patches & Fixes for CVE-2026-68771 (2)

Vendor Advisories for CVE-2026-68771 (1)

Vendor Pages for CVE-2026-68771 (1)

Same Patch Batch · Comfy-Org · 2026-07-31 · 5 CVEs total

CVE-2026-56670 8.2 HIGH ComfyUI: Stored XSS via SVG file upload on the /view endpoint
CVE-2026-56672 8.2 HIGH ComfyUI: Stored XSS via /userdata/{file} due to Missing Content-Type Sanitization
CVE-2026-56673 7.5 HIGH ComfyUI: Path traversal in LoadImage via the /prompt API allows arbitrary file existence p
CVE-2026-56671 7.5 HIGH ComfyUI: Path traversal in /experiment/models/preview allows arbitrary image file read

IV. Related Vulnerabilities

Same product: ComfyUI
Same vendor: Comfy-Org
Same weakness: CWE-502

V. Comments for CVE-2026-68771

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