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

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

https://cvefeed.io/rssfeed/latest.atom / Sat, 08/01/2026 - 01:08
CVE ID :CVE-2026-68771
Published : July 31, 2026, 10:17 p.m. | 36 minutes ago
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.
Severity: 9.8 | CRITICAL
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