CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2026-68771 — ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrai...

·Source: NIST NVD

Updated:

Executive Summary

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 ref

Analysis

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. CVSS Score: 9.8. Published: 2026-07-31T22:17:03.630.

Indicators of Compromise (1)

CVE (1)
CVE-2026-68771
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Jul 31, 2026. Verified by: NIST.

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