CVE-2026-68771 — ComfyUI 0.23.0 Unauthenticated RCE via LoadTrainingDataset Pickle Deserialization
ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset node that allows unauthenticated remote attackers to execute arbitrary Python code by…
Published: 2026-07-31 · CVSS: 9.3 · CVSS 4.0
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 · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7