CVE-2026-68771

criticalCVSS 9.8covered by 1 sourcefirst seen 2026-07-31

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.

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Advisory coverage (1)

criticalCVE-2026-68771: ComfyUI v0.23.0 contains an unsafe deserialization vulnerability in the LoadTrainingDataset no…nvd · 2026-07-31

External references

NVD record for CVE-2026-68771

CVE.org record

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